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Archive for February, 2018

Really Right Stuff is moving from California to Utah to escape rising costs

22 Feb

Camera accessories company Really Right Stuff (RRS) has announced that it will be moving both its headquarters and its manufacturing operations to Lehi, Utah, where it will have access to a building that is 2.5 times larger than its current location. The company points toward increasing costs in California, where it is presently located, as the reason for the move.

“We love beautiful San Luis Obispo, but our employees can’t afford to buy a home,” RRS CEO Joseph M. Johnson explained in a statement on the company’s website. Most of RRS’s employees will be making the move to the new Utah location, which is 35 minutes from Salt Lake City.

This is good news for customers who will ultimately benefit from the location change. Speaking to Fstoppers, RRS Assistant Product Manager Nathanael Brookshire said the new building will open the door for a larger workforce and expanded production: “The move comes with expansion on every level.”

Press Release

RRS Is Moving To Lehi, Utah

San Luis Obispo, CA, 16 February 2018 – Really Right Stuff, LLC (RRS) is pleased to announce it is moving its manufacturing operations and headquarters to Lehi, Utah by the end of summer 2018. The move to a new, 2 ½ times larger building enables continued growth and allows RRS to better serve its customers.

CEO Joseph M. Johnson, Sr. commented, “Continually rising costs in California make it tough for a small business to compete in the global economy. We love beautiful San Luis Obispo, but our employees can’t afford to buy a home. The business-friendly environment and low cost of living in Lehi, Utah made it a clear choice for us to best serve our customers and employees long-term. I’m happy to see most of our employees coming with us, keeping our RRS family largely intact.”

Located 35 minutes south of Salt Lake City along the Wasatch Front of the Rocky Mountains, Lehi is an ideal location for Really Right Stuff. It is the fifth fastest growing city in the country at the center of the high tech “Silicon Slopes.” Lehi’s beautiful natural surroundings provide easy access to hiking, mountain biking, fishing, camping, skiing, hunting, and, of course, excellent outdoor photography that spurred the birth of RRS. Six national parks are within a 4-5 hour drive from Lehi, including Yellowstone and Zion.

Articles: Digital Photography Review (dpreview.com)

 
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Tamron is working on a 28-75mm F2.8 lens for full-frame Sony mirrorless cameras

22 Feb

Tamron is working on a fast standard zoom lens for full-frame Sony E-mount cameras. Details are thin at this point, but the 28-75mm F2.8 Di III RXD will offer a minimum focus distance of 19cm/7.5in at wide-angle, will measure 11.7cm/4.6in long and weigh in at 19.4oz/1.2lb. Tamron claims the lens will offer excellent optical performance and high-quality bokeh. An ‘RXD’ stepping motor autofocus unit provides quiet operation for video applications, and the whole thing will be moisture-resistant.

Press Release

Tamron announces the development of a high-speed standard zoom lens for Sony full-frame mirrorless cameras

28-75mm F/2.8 Di III RXD (Model A036)

February 22, 2018, Commack, New York – Tamron announces the development of a new high-speed standard zoom lens for Sony full-frame mirrorless cameras, the 28-75mm F/2.8 Di III RXD (Model A036). This signals Tamron’s plans to further expand and improve its lens lineup for full-frame mirrorless cameras, in addition to its lenses for DSLR and other mirrorless camera formats.

Model A036 delivers superb optical performance, including both outstanding image quality and beautiful background blur effects (bokeh). Photographers may enjoy dynamic wide-angle expressions like never before thanks to a minimum object distance of 7.5 in at the wideangle zoom setting. Usefulness and versatility are enhanced by its compact size and light weight, measuring only 4.6 in and weighing 19.4 oz. Model A036 incorporates an all-new high-speed and precise AF driving system. The RXD (Rapid eXtra-silent stepping Drive) stepping motor unit operates with remarkable quietness, making it perfect for video use. The lens also features Moisture-Resistant Construction that is helpful in outdoor photography, plus hydrophobic Fluorine Coating that is highly resistant to fingerprints and debris. In addition, A036 is compatible with the “Direct Manual Focus (DMF)” system feature of Sony cameras, enabling this new zoom to take full advantage of the advanced functions that ensure comfortable user experiences.

PRODUCT HIGHLIGHTS

1. Superb optical performance, including both outstanding image quality and beautiful background blur effects (bokeh), provided by fast F/2.8 aperture.

2. Comfortably light weight (19.4 oz.) and compact (4.6 in).

3. Close-focusing; Minimum Object Distance: 7.5 in at wide-angle setting and 15.3 in at the telephoto position.

4. All-new “RXD” stepping motor AF unit is extremely quiet and therefore perfect for video capture.

5. Exciting next-generation design keeping the brand consistency that is ergonomically superb.

6. Moisture-Resistant Construction and Fluorine Coating for weather protection.

7. Compatible with the “Direct Manual Focus (DMF)” feature that enables Sony cameras to instantly switch between autofocus and manual focus.

* Specifications, appearance, functionality, etc. are subject to change without prior notice.

Tamron 28-75mm F2.8 Di III RXD specifications

Principal specifications
Lens type Zoom lens
Max Format size 35mm FF
Focal length 28–75 mm
Image stabilization No
Lens mount Sony FE
Aperture
Maximum aperture F2.8
Aperture ring No
Optics
Special elements / coatings Fluorine coating
Focus
Minimum focus 0.19 m (7.48)
Autofocus Yes
Motor type Stepper motor
Full time manual Yes
Focus method Internal
Distance scale No
DoF scale No
Physical
Weight 550 g (1.21 lb)
Length 117 mm (4.61)
Sealing Yes
Colour Black
Zoom method Rotary (extending)
Power zoom No
Zoom lock No

Articles: Digital Photography Review (dpreview.com)

 
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Tamron announces 70-210mm F4 Di VC USD for full-frame DSLRs

22 Feb

Tamron is introducing a stabilized 70-210mm F4 tele-zoom for full-frame Canon and Nikon DSLRs. The lens uses an internal zoom mechanism so that the overall length never changes as it’s operated and a ring-type ultrasonic motor. It also offers moisture-resistance, up to 5 stops of stabilization and a close focusing distance of 0.95m/37.4in. The 70-210mm F4 includes 20 optical elements in 14 groups, including 3 low-dispersion elements to reduce chromatic aberration.

The 70-210mm F4 is compatible with Tamron’s 1.4x and 2.0x teleconverters, as well as the company’s Tap-in Console for easy firmware updates. Arriving this April in Canon and Nikon mounts, the 70-210mm F4 will sell for $ 800 – quite a bit cheaper than the offerings from those two manufacturers.

New F/4 telephoto zoom lens featuring superb optical performance and a lightweight and compact body for easy portability

70-210mm F/4 Di VC USD (Model A034)

February 22,2018, Commack, New York— Tamron announces the launch of the 70-210mm F/4 Di VC USD (Model A034), a compact telephoto zoom lens for full-frame DSLR cameras. Model A034 provides superb optical performance throughout the entire zoom range and features a maximum magnification ratio of 1:3.1, the highest in its class.* The design includes an internal zoom mechanism that provides solid mechanical construction and stable, reliable operation. Model A034 also employs a Dual MPU (Micro-Processing Unit) design, which enables high-speed and high-accuracy AF performance as well as powerful VC (Vibration Compensation) image stabilization for flexible and versatile use in various situations. For dependable outdoor use, the new telephoto zoom is equipped with Fluorine Coating and Moisture-Resistant Construction. The lens will be available in Canon and Nikon mounts in April at $ 799.00.

*Among 70-200mm F/4 class interchangeable lenses for full-frame DSLR cameras (as of January 2018: Tamron)

PRODUCT HIGHLIGHTS

1. High-performance telephoto zoom lens with a constant maximum aperture of F/4
Leveraging Tamron’s years of knowhow developing telephoto zoom lenses, Model A034 achieves superb optical performance with high contrast and resolution. The optical construction (20 elements in 14 groups) uses three LD (Low Dispersion) lens elements to effectively compensate for axial and transverse chromatic aberrations, thereby ensuring crisp and crystal-clear image quality across the entire frame. Furthermore, Model A034 features a constant maximum aperture of F/4 throughout the entire zoom range, thus providing superior control over depth-of-field and excellent bokeh. Compared to large aperture telephoto zoom lenses, the new A034 is lighter with a weight of just 30.3 oz. and is more compact with a total length of only 6.8 in. for excellent portability. The lighter weight and smaller size make this new lens easier to carry and instantly spring into action.

2. Class-leading magnification ratio and MOD (Minimum Object Distance)
Model A034 boasts the highest-in-class maximum magnification ratio of 1:3.1 and the shortest-in-class* MOD of 37.4 in. The shorter working distance enables photographers to capture close-up images of small objects like flowers while using a telephoto zoom.

*Among 70-200mm F/4 class interchangeable lenses for full-frame DSLR cameras (as of January 2018: Tamron)

3. Highly reliable internal zoom mechanism
Thanks to an internal zoom mechanism, the physical length of the A034 does not change during zooming, thereby minimizing changes in the center of gravity and providing more stable use and operation. In addition, it’s not necessary for the photographer to move backwards even when shooting space is limited, for instance, when photographing through a wire mesh fence at a zoo. So-called “zoom creep” is impossible because the overall length never extends. Furthermore, the design provides a very robust and sturdy feeling, and the non-rotating front element makes the use of polarizing filters much easier.

4. High-speed Dual MPU (Micro-Processing Unit) control system delivers responsive autofocus performance plus outstanding VC (Vibration Compensation) image stabilization
The Dual MPU system includes two high-performance MPUs (micro-processor units) dedicated to VC processing and lens system control. Both MPUs have a DSP (Digital Signal Processing) block that provides high-speed digital signal processing, improving the computing power of the entire system. This new control system achieves high-speed and precise AF performance as well as assured VC effects.

Excellent autofocus performance
Model A034’s AF drive system uses a USD (Ultrasonic Silent Drive) ring-type ultrasonic motor for outstanding responsiveness and to ensure fast, precise focusing. Plus, the new zoom is equipped with a Full-time Manual Focus override mechanism that enables a photographer shooting with AF to instantly make fine manual focusing adjustments without switching the AF-MF mode switch.

Outstanding vibration compensation effects
The new A034 is equipped with Tamron’s proprietary VC system and achieves the CIPA image stabilization performance level of 4 stops.* Even in low light or with slow shutter speeds, photographers can enjoy shake-free handheld shooting with ease and comfort.

*CIPA Standard Compliant. For Canon: EOS-5D MKIII is used; for Nikon: D810 is used.

5. Fluorine Coating
The surface of the front element is coated with a protective fluorine compound that has excellent water-and oil-repellant qualities. The front surface is easier to wipe clean and is less vulnerable to the damaging effects of dirt, dust, moisture or oily fingerprints, allowing for much easier maintenance. The coating also provides an enhanced level of durability, and will sustain its effectiveness for years.

6. Moisture-Resistant Construction
Seals are located at the lens mount area and other critical locations to prevent infiltration of moisture and/or rain drops to provide Moisture-Resistant Construction. This feature affords an additional layer of protection when shooting outdoors under adverse weather conditions.

7. Compatible with Tamron teleconverter
The new lens is also compatible with the TELECONVERTER 1.4x (Model TC-X14) and TELECONVERTER 2.0x (Model TC-X20), which increase the focal length of the lens to 1.4 times and 2 times the original, respectively. Both teleconverters are carefully designed and constructed to provide outstanding high image quality.

Note: For more detailed information about teleconverters, please refer to the Tamron website.

8. Compatible with TAMRON TAP-in ConsoleTM, an optional accessory
The new A034 is compatible with the optional TAMRON TAP-in Console, an optional accessory product that provides a USB connection to a personal computer, enabling users to easily update a lens’s firmware as well as customize features including fine adjustments to the AF and VC.

9. Optional tripod mount compatible with Arca-Swiss style quick release plates
For rapid attachment to a tripod, an Arca-Swiss style tripod mount is available as an optional accessory. Featuring a hinge-type ring section, connection is easy even when the lens is mounted on a camera. To maximize the advantages of the small and lightweight F/4 zoom lens, the tripod mount is made of lightweight, sturdy magnesium alloy.

10. Electromagnetic diaphragm system now used also for Nikon-mount lenses
An electromagnetic diaphragm system, which has been a standard feature for Canon-mount lenses, is now employed in Nikon-mount lenses.* More precise diaphragm and aperture control is possible because the diaphragm blades are driven and controlled by a built-in motor through electronic pulse signals.

*Available only with cameras compatible with the electromagnetic diaphragm (D5, D4s, D4, D3X, Df, D850, D810, D810A ,D800, D800E, D750, D600, D610, D300S, D500, D7500, D7200, D7100, D7000, D5600, D5500, D5300, D5200, D5100, D5000, D3400, D3300, D3200, D3100). (As of January 2018; Tamron)

Tamron 70-210mm F4 Di VC USD specifications

Principal specifications
Lens type Zoom lens
Max Format size 35mm FF
Focal length 70–210 mm
Image stabilization Yes
CIPA Image stabilization rating 4 stop(s)
Lens mount Canon EF, Nikon F (FX)
Aperture
Maximum aperture F4
Minimum aperture F32
Aperture ring No
Number of diaphragm blades 9
Optics
Elements 20
Groups 14
Special elements / coatings 3 low-dispersion elements + fluorine coating
Focus
Minimum focus 0.95 m (37.4)
Maximum magnification 0.32×
Autofocus Yes
Motor type Ring-type ultrasonic
Full time manual Yes
Focus method Internal
Distance scale Yes
DoF scale No
Physical
Weight 859 g (1.89 lb)
Diameter 76 mm (2.99)
Length 175 mm (6.89)
Sealing Yes
Colour Black
Zoom method Rotary (internal)
Power zoom No
Zoom lock No
Filter thread 67 mm
Hood supplied Yes
Tripod collar No

Articles: Digital Photography Review (dpreview.com)

 
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Panasonic unveils ‘industry-first’ 8K organic image sensor with global shutter

22 Feb

Panasonic has developed an 8K image sensor capable of shooting 60p video, with wide dynamic range and global shutter. The latter removes the ‘rolling shutter’ effect from stills and video. The sensor combines an organic photosensitive film that sits atop CMOS circuitry, circumventing one of the biggest problems with traditional global shutter CMOS chips: co-located photosensitive and charge storage areas that compete with one another for space within the surface area of each pixel. This allows Panasonic’s chip to comparatively achieve far greater photosensitive area (better low light performance) and expansive charge capacity (wide dynamic range), and perform some other unique tricks.

Comparing typical BSI CMOS image sensor design (left), Panasonic’s new OPF/CMOS image sensor (right). Note how thin the OPF layer is compared to a traditional silicon photodiode. This allows a large area to be devoted to circuitry, and also means each pixel can accept a wider cone of incident light. This increases the CRA (chief ray angle) from the traditional 30-40º to 60º.

In June of 2013, Fujifilm and Panasonic announced a collaboration that got a lot of photography nerds talking: together, the two companies had developed an ‘industry-leading’ organic / CMOS sensor technology that replaces the silicon photodiode in a conventional CMOS chip with a much thinner, high absorption coefficient organic photoelectric conversion (OPC) layer. A transparent electrode sits on top of this organic photoconductive film (OPF) and modulates its photosensitivity when a voltage is applied. This approach brings a number of advantages, like the ability to accept more oblique light rays, higher pixel capacities and global shutter.

Advantages include the ability to accept more oblique light rays, higher pixel capacities and global shutter

It’s been many years since we first heard about the collaboration, but it now appears to be at the heart of Panasonic’s latest announcement: the news that it has developed an ‘industry-first’ 8K global shutter sensor that uses OPF/CMOS tech to perform all of its tricks. Panasonic claims its new sensor can capture 8K images and 60fps video while offering incredible dynamic range, global shutter, and a built-in electronically-controlled variable ND filter function.

At face value, this sensor seems to offer quite a bit more than the backlit CMOS sensor with global shutter announced by Sony last week. Furthermore, Sony has only so far managed to build a 1.46-megapixel sensor using its pixel-parallel ADCs, while Panasonic seems to have an 8K organic/CMOS sensor already operational. Ostensibly, Panasonic’s technology shouldn’t place any particular restrictions on pixel size – which likely explains how it was able to achieve high resolution via small pixels – while Sony’s approach of an ADC for every pixel presumably places some size constraints on the design.

This Figure shows the dynamic range capabilities of the sensor’s ‘high saturation’ mode (left) and the advantages of its global shutter functionality (right)

Technical Details

Organic/CMOS sensors are able to offer these capabilities by separating the photosensitive area (the organic light-sensitive material) from the signal processing area (all the circuitry), and by then modulating the organic photoconductive film to turn its photosensitivity on or off (or tune it). A transparent electrode sits on top of the OPF – which spans the entire sensor – and the application of increasing voltage to the electrode makes the OPF more photosensitive. This allows for fine tuning of the photosensitivity of the sensor, and the ability to turn all pixels on or off simultaneously.

The organic film layer allows all pixels to be turned on or off simultaneously

The separation of the photoelectric conversion part from the circuitry allows each to be optimized independently, rather than the optimization of one placing constraints on the other. This, combined with how thin the OPF layer is compared to a traditional silicon photodiode, has allowed Panasonic to dedicate a large area to circuitry, separating the (traditionally somewhat co-located) photoelectric conversion and charge storage parts. The result? Large capacitors that allow for enormous full-well capacity: Panasonic claims its sensor can collect up to 450,000 photoelectrons per pixel, which is insane and means this sensor is likely to have a very wide dynamic range. By comparison, we’re more used to seeing an order of magnitude less full-well capacity: ~45,000 photoelectrons per pixel in full frame cameras.

‘In-pixel gain switching technology’ also allows the Panasonic sensor to switch to a high efficiency mode, though in this mode the pixels saturate at 4,500 photoelectrons – yielding far less dynamic range but enhanced low light ability.

Panasonic shows off the incredible dynamic range of this new organic sensor.

In this latest design, these benefits have been combined with a new “in-pixel capacitive coupled noise cancellation technique” which can suppress pixel reset noise very quickly, even when you’re shooting at really high resolution… say, 8K.

The organic layer is also the source of the electronically-controlled ND function. By changing how much voltage you apply to the organic layer, you can change its sensitivity and therefore have it capture more or less light per unit time. You can see the relationship between applied voltage and signal, with higher voltages making the OPF more light sensitive (increasing photoconductivity), and lower voltages making the sensor less sensitive. VH (high voltage) is the default voltage applied to make the OPF maximally sensitive, while VL (low voltage) simulates the effect of a 5 stop ND filter.

This would, ostensibly, save photographers and videographers from needing to carry around a set of ND filters, allowing you to adjust to challenging lighting situations in-camera.

This figure shows the stepless, electronically-controlled ND filter functionality of the Panasonic sensor.

Finally, the organic layer is also the source of the global shutter function. Global shutter involves capturing/reading all of the pixels on a sensor at once. Most CMOS sensors read the image row-by-row, leading to ‘rolling shutter’ distortion where fast moving objects look warped because the bottom part of the object was actually captured a split second later than its top.

This is what Sony addressed with its new BSI CMOS sensor announced last week. That sensor achieves global shutter by adding an ADC to every single pixel rather than every column of pixels. Unfortunately, this approach is currently difficult to scale—which is why Sony has only managed to put it into a 1.46MP sensor with fairly large pixels thus far.

Panasonic’s design achieves this same trick by taking advantage of the ability to turn the entire organic layer on or off simultaneously. At the end of an exposure, the voltage applied to the transparent electrode is simply switched off, effectively turning off the photosensitivity of all pixels simultaneously. This decouples the end of an exposure from read-out, which can still be done sequentially, line-by-line. Impressively, Panasonic’s sensor can operate in this manner “even driving a large number of pixels like the 8K sensor”.

The sensor’s global shutter functionality eliminates rolling shutter distortion caused by reading the sensor row-by-row, rather than all at once.

What’s Next?

So, are we going to see this in any upcoming Panasonic video cameras? Will the Panasonic GH6 or its best high-end Varicam shoot 8K/60p with insane dynamic range, global shutter, and built-in electronic ND filter? We’d sure like to hope so, but probably not.

Remember, this organic/CMOS sensor technology was first introduced as a major breakthrough in 2013. To the best of our knowledge, not a single camera has used that technology in the intervening 5 years. Apple recently acquired InVisage QuantumFilm technology, which uses a film layer to to roll-off highlights for 2-3 stops of additional dynamic range. All this makes us wonder if the tech is really ready for prime time.

Not that we shouldn’t be excited about this breakthough—those are some really incredible specs. We’re just tempering our excitement with a little bit of experience… and maybe a touch of patience and skepticism.


Panasonic Develops Industry’s-First 8K High-Resolution, High-Performance Global Shutter Technology using Organic-Photoconductive-Film CMOS Image Sensor

The new technology enables 8K high resolution and high picture quality imaging without motion distortion, even in extremely bright scenes.

Osaka Japan, – Panasonic Corporation today announced that it has developed a new technology which realizes 8K high-resolution (36M pixels), 60fps framerate, 450k high-saturation electrons and global shutter [1] imaging with sensitivity modulation function simultaneously, using a CMOS image sensor with an organic photoconductive film (OPF). In this OPF CMOS image sensor, the photoelectric-conversion part and the circuit part are independent. By utilizing this OPF CMOS image sensor’s unique structure, we have been able to newly develop and incorporate high-speed noise cancellation technology and high saturation technology in the circuit part. And, by using this OPF CMOS image sensor’s unique sensitivity control function to vary the voltage applied to the OPF, we realize global shutter function. The technology that simultaneously achieves these performances is the industry’s first*1.

With the technology, it is possible to capture images at 8K resolution, even in high contrast scenes, such as a field under strong sunlight and shaded spectator seats under a stadium roof. Moreover, by utilizing the global shutter function that enables simultaneous image capture by all pixels, it is expected to be able to capture moving objects instantaneously without distortion, be utilized for multi viewpoint cameras (performing multi-view synchronized imaging using plural cameras) and used in fields requiring high-speed and high-resolution, such as machine vision and ITS monitoring. In addition, conventionally, even in scenes where it was necessary to utilize different ND filters [2] according to capturing conditions, the technology realizes a new electronically-controlled variable ND filter function which enables stepless adjustment of the OPF sensitivity [3] merely by controlling the voltage applied to the OPF.

The new technology has the following advantages.

  1. 8K resolution, 60fps framerate, 450k saturation electrons and global shutter function are realized simultaneously.
  2. Switching between high sensitivity mode and high saturation mode is possible using gain switching function.
  3. The ND filter function can be realized steplessly by controlling the voltage applied to the OPF.

This Development is based on the following technologies.

  1. “OPF CMOS image sensor design technology”, in that, the photoelectric-conversion part and the circuit part can be designed independently.
  2. “In-pixel capacitive coupled noise cancellation technique” which can suppress pixel reset noise at high speed even at high resolution
  3. “In-pixel gain switching technology” that can achieve high saturation characteristics
  4. “Voltage controlled sensitivity modulation technology” that can adjust the sensitivity by changing the voltage applied to the OPF.

Panasonic holds 135 Japanese patents and 83 overseas patents (including pending) related to this technology.

Panasonic will present some of these technologies at the international academic conference: ISSCC (International Solid-State Circuit Conference) 2018 which will be held in San Francisco on February 11 – 15, 2018.

Notes:

*1: As of February 14, 2018, according to Panasonic data.

More on the Technology

1. “OPF CMOS image sensor design technology”, in that, the photoelectric-conversion part and the circuit part can be designed independently.

The OPF CMOS image sensor has a unique structure, in which, the OPF performs a photoelectric conversion and the circuit area performs charge storage and signal readout functions completely independently. Using this OPF CMOS image sensor structure, we developed high-speed noise cancellation technology and high saturation technology in the circuit area which has a large available space. As a result, it is possible to realize simultaneously 8K resolution, 60fps framerate readout, wide dynamic range [4] (by achieving a high saturation level) and global shutter function, which are normally traded off.

2. “In-pixel capacitive coupled noise cancellation technique” which can suppress pixel reset noise at high speed even at high resolution

Because the OPF CMOS image sensor has a structure in which the OPF and the charge storage part are connected by metal plugs, accumulated charges cannot be completely read out. Therefore, there is a problem that it is affected by reset noise at the time of resetting the pixel (signal charge storage node). And, in a high-resolution sensor, such as an 8K sensor, it is necessary to drive large loads exceeding 4000 pixels aligned in the vertical direction at the same time as the time of noise cancellation, and therefore, the long time it takes to suppress noise is a problem. So, we developed a new structure that cancels pixel reset noise at high speed, even when high resolution pixels have to be driven, by using Panasonic’s original semiconductor device technology and the newly developed “in-pixel capacitive coupled noise canceller”. In this structure, the reset noise is suppressed at high speed by using the negative feedback loop provided for each pixel.

3. “In-pixel gain switching technology” that can achieve high saturation characteristics

In the OPF CMOS image sensor, by incorporating a large capacitor in the circuit part with a large available area, it is possible to realize both high sensitivity mode and high saturation mode with the same pixel structure merely by switching modes from the camera system. In the high sensitivity mode, it is possible to capture data up to a light intensity of 4.5k electrons with high sensitivity. Furthermore, by switching to the high saturation mode, it is possible to capture data up to a light intensity of 450k electrons. In this way, since the high saturation mode can capture up to 10 times the high sensitivity mode, it is possible to clearly display the fine winding structure of the lamp filaments, in which bright part gradation cannot be expressed, because it becomes overexposure in high sensitivity mode, as shown in Fig. 3 (a). Even in a scene with high contrast, such as shown in Fig. 5, from the facial expression of the person in the shadow of the stadium roof to the blue sky and clouds during a mid-summer day, and such as shown in Fig. 6, from the dimly lit room to the sunny garden, it will be possible to capture brilliant images without overexposure or underexposure.

4. “Voltage controlled sensitivity modulation technology” that can adjust the sensitivity by changing the voltage applied to the OPF.

The OPF CMOS image sensor can change the sensitivity of the OPF simply by controlling the voltage applied to the OPF. By utilizing this function, we can realize the following functions which could not be realized with conventional silicon image sensors.

Sensitivity Modulation Example 1: Global shutter function which can capture all pixels simultaneously at 8K resolution

By controlling ON / OFF of the voltage applied to the OPF and controlling the sensitivity of the OPF, we realize the “global shutter function” capable of imaging all pixels at the same time, even driving a large number of pixels like the 8K sensor. By capturing with the global shutter function, as shown in Fig. 3 (b), the letters on the rotating body are read sharply without distortion. In addition, as shown in Fig. 7, even at the time of high speed moving object capturing, such as when driving on a highway or at industrial inspection, capturing without distortion becomes possible.

In the conventional global shutter type silicon image sensor, it is necessary to add new elements such as transfer circuits and charge storage capacitors in order to accumulate charges simultaneously in all pixels. As a result, the area of the photodiode and that of the additional circuits must compete for space, there is a problem that the pixel size cannot be reduced and the amount of saturation electrons cannot be increased. On the other hand, in the OPF CMOS image sensor, since there is no need for additional elements, it is possible to realize small cell, high resolution sensors, and by incorporating large capacitors in the circuit part with a large available area, accurate imaging with no distortion from dark scenes to extremely bright scenes is possible. For example, as shown in Fig. 9, with the OPF CMOS image sensor, when buildings are photographed while panning [5] at high speed, even in scenes with high contrast like a bright sky and dark windows, it is possible to acquire image data maintaining all gradations of the whole area without distortion.

Sensitivity Modulation Example 2: “Electrical ND Filter Technology” which can change sensitivity continuously and steplessly

Conventionally it has been necessary to provide a plurality of ND filters according to photographing conditions and change them many times. On the other hand, in the OPF CMOS image sensor, merely by controlling the voltage applied to the OPF (VITO in Fig. 8) and changing the sensitivity of the OPF to the desired value, it is possible to electrically implement the ND filter function. By using this function, it becomes possible to simplify the photographic equipment and continuously, steplessly control the sensitivity which could not be realized with a conventional silicon sensor. Therefore, the possibility of capturing according to the scene is expanded.


In the future, we will utilize this OPF CMOS image sensor technology in various applications such as broadcasting cameras, surveillance cameras, industrial inspection cameras, automotive cameras, etc., and will contribute to realize high resolution, high speed and high precision imaging and sensing functions.

Technical Terms:

[1] Global shutter:
Shutter operation which can captures the image at the same time with all pixels. Organic CMOS image sensors operate in rolling shutter mode in which exposure and shutter operation is executed row by row.
[2] ND filter
Abbreviated name of neutral density filter.
A filter that functions to evenly absorb light in the visible range and reduce only the light intensity without affecting color.
[3] Sensitivity modulation
The photoelectric conversion efficiency is changed according to the control. In the OPF CMOS image sensor, the photoelectric conversion efficiency can be changed by controlling the voltage applied to the OPF.
[4] Dynamic Range
Range of brightness that can be imaged.
(Ratio between the largest and the smallest values of brightness.)
[5] Panning
A technique for capturing wide scenes by moving the framing in the horizontal direction with a fixed camera, which is a common video capturing technique.

Articles: Digital Photography Review (dpreview.com)

 
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How To Take Good Photos If You Wear Glasses

22 Feb

Taking beautiful photos should not be a problem for those who wear eyeglasses. When you take pictures, it’s obvious that the photographer gets as close as possible to the viewfinder to get the best view as possible. However, people with eyeglasses have a problem in doing so. If you are using eyeglasses,  this problem can be solved if you follow Continue Reading

The post How To Take Good Photos If You Wear Glasses appeared first on Photodoto.


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Ricoh will let Pentax K-1 owners update their cameras to a Mark II for $550

22 Feb

For a limited time this summer, current Pentax K-1 owners will be able to send their cameras in for service, essentially upgrading them to a Mark II. The service will include a main circuit board swap, and the ‘SR’ logo on the front of the camera will be replaced with a Mark II logo. The upgraded circuit board will add all of the features introduced in the Mark II, such as shooting at up to ISO 819,200 and an updated Pixel Shift mode.

The K-1 upgrade service will cost $ 550 US / $ 690 CAD and will be offered from May 21, 2018 to September 30, 2018.

We do not yet have details of the price or timeframe for upgrading in other regions but we’re told it should be available and we’ll post detailed when we have them.

Ricoh announces an upgrade service for current PENTAX K-1 camera owners

WEST CALDWELL, NJ, February 21, 2018?In conjunction with the announcement of the new PENTAX K-1 Mark II 35mm full-frame digital SLR (DSLR) camera, Ricoh Imaging Americas Corporation today announced an upgrade service for current PENTAX K-1 owners.

The program allows current PENTAX K-1 owners to upgrade their current camera to receive the advanced functions of the new PENTAX K-1 Mark II.

Here is an overview of the upgrade service:

– The upgrade service will be available for a limited time, from May 21, 2018 – September 30, 2018- Upgrade cost: $ 550USD / $ 690 CAD- Cameras will need to be shipped to Precision Camera (US) and Sun Camera (Canada)

The upgrade entails replacing the PENTAX K-1’s main circuit board to add new functions featured in the new PENTAX K-1 Mark II camera. Additionally, the current “SR” logo on the PENTAX K-1 will be replaced with the new PENTAX K-1 Mark II logo.

More details on the program will be released in the upcoming weeks. Please go to www.us.ricoh-imaging.com or email us at conact@us.ricoh-imaging.com for more information.

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Pentax K-1 Mark II shoots up to ISO 819,200, offers updated Pixel Shift

22 Feb

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Almost exactly two years after its predecessor’s introduction, Ricoh is debuting the Pentax K-1 Mark II. It’s the company’s latest full-frame DSLR and uses the same AA-filterless 36.4MP sensor used by the Mark I, but adds a new ‘accelerator’ to the imaging pipeline. This addition makes it possible to shoot at up to ISO 819,200, according to Ricoh. The company also says updated image processing parameters offer better color reproduction, especially blues and greens.

The K-1 II’s Pixel Shift Resolution System II adds the ability to use this high-res mode without a tripod by measuring the movements that come from hand shake, then capturing and combining four frames into one high-resolution image. The company calls this feature Dynamic Pixel Shift Resolution mode.

Official samples:

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The camera’s hardware specs are otherwise unchanged from the K-1: it still offers a sturdy, weather-resistant construction and a flexible, articulated 3.2″ 1.04 million dot LCD complemented by a nearly 100% optical viewfinder (0.7x magnification). It continues to offer 33 AF points (25 cross-type), with an updated tracking algorithm that claims to improve accuracy while photographing moving subjects in AF-C mode. In-body 5-axis image stabilization is included, claiming up to 5 stops of correction.

Burst shooting tops out at 4.4 fps (up to 17 Raw images or 70 JPEGs) in regular shooting, or 6.4 fps in APS-C crop mode. The camera’s maximum video resolution of 1080/30p is starting to look a bit dated, though it does offer a 4K resolution interval mode that turns a series of stills into a time-lapse video. Headphone and microphone ports are offered, with a new wind-reduction audio recording option.

The Pentax K-1 Mark II will go on sale in April for $ 1999.95 body-only, or bundled with the HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR zoom for $ 2399.95.

Ricoh announces the PENTAX K-1 Mark II full-frame digital SLR camera

Flagship model in the PENTAX K series camera line updated to deliver even higher image quality and enhanced performance in challenging shooting conditions

WEST CALDWELL, NJ, February 21, 2018?Ricoh Imaging Americas Corporation today announced the PENTAX K-1 Mark II 35mm full-frame digital SLR (DSLR) camera. Developed as the successor to the PENTAX K-1 full-frame DSLR camera launched in April 2016, the compact, rugged and weather-resistant PENTAX K-1 Mark II now becomes the flagship camera in the acclaimed PENTAX K-series lineup. The camera incorporates new technologies that allow it to deliver outstanding image quality and improved operability in a broader range of shooting conditions.

The PENTAX K-1 Mark II uses the same full-frame Anti-aliasing (AA)-filterless CMOS sensor with 36.4 effective megapixels as its predecessor model. However, Ricoh has added a new accelerator unit to the PENTAX K-1 Mark II that—along with the camera’s PRIME IV image processor—enables it to produce high-resolution images with minimal noise in even in the most challenging low-light conditions, up to ISO 819200. This makes the new camera ideal for low-light photography where higher shutter speeds are required.

The camera also incorporates Pixel Shift Resolution System II. This new, PENTAX-developed technology uses the same in-camera shake-reduction (SR) mechanism and sensor-shift capabilities as the original Pixel Shift Resolution System found in the PENTAX K-1, which captures four images of the same scene, and then synthesizes them into a single, super-high-resolution composite image. With the Pixel Shift Resolution System II, the camera also obtains RGB color data, resulting in images with significantly finer details and truer colors than those produced by typical full-frame sensors.

A new feature in the Pixel Shift Resolution System II is Dynamic Pixel Shift Resolution mode. This mode allows photographers to produce crisp, ultra-high pixel shift resolution images without the need of a tripod, extending the camera’s use to a wider variety of subjects and scenes.

The PENTAX K-1 Mark II also comes equipped with many unique features and functions designed to facilitate creativity and ensure operational comfort that have become the hallmark of PENTAX cameras. These include a sturdy magnesium-alloy body with dustproof, weather-resistant construction; an optical viewfinder with a nearly 100-percent field of view for real-time subject confirmation; Astro Tracer, which simplifies the tracing and photographing of celestial bodies by coupling GPS data with the camera’s sophisticated SRII mechanism; and a flexible tilt-type LCD monitor to accommodate various shooting angles.

| Pricing and Availability |

The PENTAX K-1 Mark II camera body will be available in April 2018 for a suggested list price of $ 1,999.95. The camera body plus HD PENTAX-D FA 28-105mm F3.5-5.6 ED DC WR zoom lens will also be available for a suggested list price of $ 2,399.95. Both can be purchased at www.us.ricoh-imaging.com as well as at Ricoh Imaging-authorized retail outlets throughout North America.

| Main Features |

1. Newly incorporated accelerator unit delivers high-quality images and excellent super-high-sensitivity imaging performance

The PENTAX K-1 Mark II features a 35mm-format full-frame CMOS image sensor with an AA (anti-aliasing) filter–free design to produce high-resolution images with approximately 36.4 effective megapixels. It also features a new accelerator unit, which optimizes the image data obtained by the full-frame image sensor before delivering it to the high-performance PRIME IV imaging engine. As a result, the camera is capable of producing high-quality images with minimal noise, while retaining excellent resolution at all sensitivity levels, from normal to super-high sensitivities. PENTAX has also updated all image-processing parameters to ensure colors are true to life, with special emphasis on deep blues and lively greens. PENTAX has also dramatically improved the camera’s noise-reduction performance at a high-sensitivity range — up to ISO 819200 — to expand creative possibilities in super low-light shooting.

2. Pixel Shift Resolution System II produces super-resolution images and enables handheld shooting

Building upon the original PENTAX-developed Pixel Shift Resolution System — the super-resolution technology that uses the camera’s in-body shake-reduction mechanism to capture four images of the same scene by shifting the image sensor by a single pixel for each image, and then synthesizes them into a single composite image — is the Pixel Shift Resolution System II,* making its debut in the PENTAX K-1 II. This new system obtains RGB color data for each pixel, resulting in super-high-resolution images with finer details and more realistic colors than those produced by cameras with ordinary full-frame sensors. The Motion Correction functions provides ON/OFF switching, which detects moving elements of the continuously captured images to minimize the effect of subject movement during the image synthesizing process.***The new Dynamic Pixel Shift Resolution mode,** which can be used during handheld shooting, works together with the camera’s shake-reduction mechanism, by synthesizing the composite images while detecting the slight fluctuations of the subject’s position during the capture process.

This technology comes from the reverse thinking of pixel shift technology to utilize the minute camera shake itself to product the composite images. Therefore, by detecting the camera shake in three dimensions, the continuously captured four images are analyzed based on the detected camera shake information and combined into a single file to produce one super high resolution image.

* When using this system, the user is advised to stabilize the camera firmly on a tripod. Even if a moving subject is captured in the camera’s image field, the image may not be reproduced clearly, partially or in total.
** The captured images may not be properly synthesized with certain subjects or under certain conditions. By capturing images in the RAW or RAW+ format, the user can process the images unsuitable for the synthesizing process as normal RAW-format images within the camera body. The images may not be properly synthesized in a composite image
*** The movement may not be sufficiently corrected when the object is moving in a certain direction and/or pattern. This function does not guarantee that the movement is properly corrected with all subjects.

3. High-performance five-axis, five-step SR II system

(1) In-body SR mechanism delivers optimal shake-reduction performance with all compatible lenses The PENTAX K-1 Mark II comes equipped with the PENTAX-developed SR II (Shake Reduction II) five-axis mechanism, which provides accurate control of the large full-frame image sensor with all compatible PENTAX interchangeable lenses.* In addition to camera shake caused by pitch and yaw, this advanced system also compensates for camera shake caused by horizontal and vertical shift (often generated in macro photography) and camera shake caused by roll, which is difficult for lens-installed shake-reduction mechanisms to handle. It has a compensation range up to five steps (measured in conformity with CIPA standards, using the HD PENTAX-D FA 28-105mm F3.5-5, 6ED DC WR at a 105mm focal length). When taking a panning shot, this system automatically detects the direction of the camera’s movement, and efficiently controls the SR unit to produce the best image possible without requiring any mode switching operation.

(2) Innovative AA filter simulator to minimize moiré and inaccurate color rendition By applying microscopic vibrations to the image sensor unit at the sub-pixel level during image exposure, the camera’s anti-aliasing (AA) filter simulator** provides the same level of moiré reduction as an optical AA filter. Unlike an optical filter, which always creates the identical result, this innovative simulator not only lets the user switch the AA filter effect on and off, but also adjust the level of the effect. This means that the ideal effect can be set for a particular scene or subject based on given photographic conditions.

(3) Additional shooting functions enabled by the SR II system Since the camera’s SR unit has a flexible design that tilts the image sensor unit in all directions, additional shooting functions are enabled, including auto level compensation, image-composition fine-adjustment, and Astro Tracer, a feature that works along with the built-in GPS, to produce super-sharp images of the night sky.

* Lenses compatible with this mechanism: K-, KA-, KAF-, KAF2-, KAF3- and K AF4-mount lenses; screw-mount lenses (with an adapter); and 645- and 67-system lenses (with an adapter). Some functions may not be available with certain lenses.
** This function works most effectively with a shutter speed of 1/1000 second or slower. This function may not be combined with some shooting modes, including the Pixel Shift Resolution system.

4. Flexible, tilting LCD monitor facilitates shooting in the dark On its back panel, the PENTAX K-1 Mark II features a flexible, tilting LCD monitor, which can be adjusted to the desired angle horizontally, vertically or diagonally with a single adjustment, without deviating from the lens’s optical axis. The user can not only tilt it approximately 35 degrees horizontally and approximately 44 degrees vertically, but also pull it out from its base to view the on-screen image from above for waist-level photography. This large, 3.2-inch LCD monitor has approximately 1,037,000 dots and a 3:2 aspect ratio, and provides a protective tempered-glass front panel for added durability. In addition to its wide-view design, it also features a unique air-gapless construction, in which the air space between LCD layers is eliminated to effectively reduce the reflection and dispersion of light for improved visibility during outdoor shooting. Its outdoor monitor function, which allows instant adjustment of the monitor’s brightness to the desired level, has also been improved to provide greater visibility in dark locations. Its red-lit monitor display function facilitates monitor viewing when the photographer’s eyes have become accustomed to a dark location during nighttime photography.

5. SAFOX 12 with 33 sensor points and full-frame-proportioned AF frame Using a SAFOX 12 AF sensor module with 33 AF sensors (25 cross-type sensors positioned in the middle), the PENTAX K-1 Mark II optimizes the autofocus process, and assures high-speed autofocus operation in the AF.S (AF Single) mode. The center sensor and two sensors located just above and below it are designed to detect the light flux of an F2.8 lens, making it easy to obtain pinpoint focus on a subject when using a large-aperture lens. Its AF Tracking algorithm has also been revised to improve tracking accuracy of fast-moving subjects in the AF.C (AF Continuous) mode.

6. PENTAX Real-Time Scene-Analysis System, developed using artificial intelligence technology By combining an approximately 86,000-pixel RGB metering sensor with the high-performance PRIME IV imaging engine, the PENTAX K-1 Mark II’s advanced PENTAX Real-Time Scene Analysis System performs real-time analysis of the brightness distribution over the image field and the subject’s colors and movement. Based on this data, it then measures the subject’s lighting conditions with great accuracy and optimizes the exposure. By adopting a breakthrough artificial intelligence technology, deep learning, to its algorithm,* it assesses each individual scene more accurately, and optimizes the exposure settings for a given scene or composition.

* Effective when the AUTO exposure mode is set to Scene Analyze Auto and the Custom Image mode is set to Auto Select.

7. Easy-to-focus optical viewfinder with nearly 100-percent field of view Optimized for a 35mm full-frame digital SLR design, the camera’s optical viewfinder provides a nearly 100-percent field of view and an approximately 0.7-times magnification. Using a combination of a condenser lens and aspherical lens, it provides a wide field of view and a clear, undistorted image of the subject. It comes with a Natural Bright Matt III focusing screen, acclaimed for ease of focusing during manual-focus operation, and true-to-life rendition of defocused areas in the viewfinder image. In addition, its transparent viewfinder display makes it possible to superimpose a wide range of photographic data over the viewfinder image.

8. High-speed continuous shooting The PENTAX K-1 Mark II allows continuous recording of as many as 17 images in the RAW format (or a maximum of 70 images in the JPEG Best format) in a single sequence, at a top speed of approximately 4.4 images per second. This is made possible by the combination of advanced mechanisms including a damper mechanism that effectively minimizes mirror shock; high-speed, high-precision control of the shutter and mirror units; and a high-speed data transmission system incorporated in the PRIME IV imaging engine. In the APS-C Crop mode, the drive speed can be boosted to as high as approximately 6.4 images per second, and as many as 50 images in a single sequence in the RAW format (or 100 images in the JPEG Best format) to assure quick response to fast-moving subjects.

9. Supportive shooting functions to improve picture-taking efficiency and operational comfort

  • Operation-assist light function, which sets LED lights at four different spots around the camera body — above the lens mount, behind the LCD monitor, at the memory car slot, and at the cable switch terminal — to facilitate lens and memory card changes, attachment and removal of the cable switch, and control button operation at night and in poorly lit settings.
  • Key lock function, which prevents erroneous operation of the four-way controller and other exposure-related control buttons.
  • Smart Function, which allows the user to swiftly choose and set desired functions using just the function dial and the set dial on the camera’s upper panel, without referring to the menu screen on the LCD monitor.
  • Control panel customize function, which allows the user to change a listing and/or position of the on-screen menu.

10. Compact, rugged body with dustproof, weather-resistant construction The camera’s bottom panel and front and back frames are all made of sturdy yet lightweight magnesium alloy. Although the camera features a dependable, durable shutter unit that can withstand 300,000 shutter releases (measured under actual shooting conditions) for professional use, its body has been downsized to the minimum possible, thanks to the incorporation of a unique floating mirror structure. With the inclusion of 87 sealing parts in the body, the camera also boasts a dustproof, weather-resistant and cold-resistant construction, assuring solid operation at temperatures as low as -10°C. All these features make the PENTAX K-1 Mark II a dependable, all-purpose performer, even under demanding shooting conditions.

11. Full HD movie recording with an array of creative tools The PENTAX K-1 Mark II captures Full HD movie clips (1920 x 1080 pixels; 60i/30p frame rate) in the H.264 recording format, and comes equipped with a stereo mic terminal for external microphone connection, and a headphone terminal. The user can also adjust the audio recording level manually, monitor sound pressure levels during microphone recording, and cut down wind noise using a new wind-noise reduction mode. In addition to a host of distinctive visual effects for movie recording,* the camera also provides the interval movie mode, which captures a series of 4K-resolution (3840 x 2160 pixels) movie clips at a fixed interval.

* When special image processing is required, the frame rate may vary depending on the selected special-effect mode.

12. Built-in GPS module The PENTAX K-1 Mark II provides a variety of advanced GPS functions, including the recording of location, latitude, longitude, altitude and UTC (Universal Time Coordinated) and direction at the time of shooting. The user can easily access images containing GPS data using a computer, to browse them, check on shooting locations and position data on the screen, or save them. The camera also provides a set of other unique tools, including: Electronic Compass, which displays the camera’s direction on its LCD monitor; GPS log, which keeps track of the photographer’s movement; and Astro Tracer, which simplifies the tracing and photographing of celestial bodies by coupling GPS data with the camera’s SR mechanism.

13. Other features

  • High-grade DRII (Dust Removal II) mechanism for effective elimination of dust on the image sensor using ultrasonic vibration
  • Crop mode with a choice of image area from AUTO, FF (Full Frame), APS-C and 1:1
  • Wireless LAN connection to support the operation with smartphones and table computers, the transfer of captured images, and remote shooting operations ?HDR (High Dynamic Range) shooting mode with RAW-format data filing, usable in handheld shooting
  • The PENTAX-invented hyper operating system for quick, accurate response to the photographer’s creative intentions
  • Dual SD card slots for memory card flexibility (compatible with SDXC UHS-1 speed class in SDR104 bus speed mode)
  • Compensation of various parameters: lens distortion, lateral chromatic aberration, diffraction, and brightness level at image-field edges. Fringe effect compensation is also available in RAW-format processing.
  • Bulb Timer function to improve operability in bulb shooting
  • Compatibility with PENTAX Image Transmitter 2 tethering software (software update required from RICOH IMAGING official website)
  • Digital Camera Utility 5 software (latest version) included

Pentax K-1 Mark II specifications

Price
MSRP $ 1999/£1799 (body only), $ 2399 (w/FA 28-105mm lens)
Body type
Body type Mid-size SLR
Body material Magnesium alloy
Sensor
Max resolution 7360 x 4912
Image ratio w:h 3:2
Effective pixels 36 megapixels
Sensor photo detectors 37 megapixels
Sensor size Full frame (35.9 x 24 mm)
Sensor type CMOS
Processor PRIME IV
Color space sRGB, Adobe RGB
Color filter array Primary color filter
Image
ISO Auto, 100-819200
White balance presets 8
Custom white balance Yes (3 slots)
Image stabilization Sensor-shift
CIPA image stabilization rating 5 stop(s)
Uncompressed format RAW
JPEG quality levels Best, better, good
File format
  • JPEG (Exif v2.3)
  • Raw (PEF/DNG)
Optics & Focus
Autofocus
  • Contrast Detect (sensor)
  • Phase Detect
  • Multi-area
  • Center
  • Selective single-point
  • Tracking
  • Single
  • Continuous
  • Face Detection
  • Live View
Autofocus assist lamp Yes
Manual focus Yes
Number of focus points 33
Number of cross-type focus points 25
Lens mount Pentax KAF4
Focal length multiplier 1×
Screen / viewfinder
Articulated LCD Tilting
Screen size 3.2
Screen dots 1,037,000
Touch screen No
Screen type TFT LCD
Live view Yes
Viewfinder type Optical (pentaprism)
Viewfinder coverage 100%
Viewfinder magnification 0.7×
Photography features
Minimum shutter speed 30 sec
Maximum shutter speed 1/8000 sec
Exposure modes
  • Program
  • Aperture priority
  • Shutter priority
  • Aperture and shutter priority
  • Sensitivity priority
  • Manual
Built-in flash No
External flash Yes (via hot shoe or flash sync port)
Flash modes Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync
Flash X sync speed 1/200 sec
Drive modes
  • Single Frame, Continuous, Self-timer, Remote Control, Bracketing, Mirror- up, Multi-Exposure, Interval Shooting, Interval Composite, Interval Movie Record, Star Stream
Continuous drive 4.4 fps
Self-timer Yes (2 or 12 sec, custom)
Metering modes
  • Multi
  • Center-weighted
  • Spot
Exposure compensation ±5 (at 1/3 EV, 1/2 EV steps)
AE Bracketing ±5 (2, 3, 5 frames at 1/3 EV, 1/2 EV steps)
Videography features
Format MPEG-4, H.264
Modes
  • 1920 x 1080 @ 60i, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 50i, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 30p, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 25p, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 24p, MOV, H.264, Linear PCM
  • 1280 x 720 @ 60p, MOV, H.264, Linear PCM
  • 1280 x 720 @ 50p, MOV, H.264, Linear PCM
Microphone Stereo
Speaker Mono
Storage
Storage types Dual SD/SDHC/SDXC (UHS-I)
Connectivity
USB USB 2.0 (480 Mbit/sec)
HDMI Yes (micro-HDMI)
Microphone port Yes
Headphone port Yes
Wireless Built-In
Wireless notes 802.11b/g/n
Remote control Yes (wired, wireless, or smartphone)
Physical
Environmentally sealed Yes
Battery Battery Pack
Battery description D-LI90 lithium-ion battery & charger
Battery Life (CIPA) 670
Weight (inc. batteries) 1010 g (2.23 lb / 35.63 oz)
Dimensions 137 x 110 x 86 mm (5.39 x 4.33 x 3.39)
Other features
Orientation sensor Yes
Timelapse recording Yes (Still or video)
GPS Built-in

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Pentax K-1 Mark II: What you need to know

22 Feb

Pentax K-1 Mark II: What you need to know

The Pentax K-1 was one of the most-anticipated cameras in recent memory. After many starts-and-stops, this full-frame DSLR finally arrived in 2016, much to the delight of Pentax photographers. It offered superb image quality from its 36MP CMOS sensor, 5-axis in-body image stabilization with several tricks up its sleeve, a unique (to say the least) articulating LCD and a body built like a tank.

The K-1 Mark II carries all of that over, but improves upon the K-1’s image quality thanks to a new ‘accelerator unit’ while adding the ability to use the Pixel Shift high-res mode without a tripod. Ricoh also mentions that the Mark II’s AF tracking algorithms have been improved.

Image Quality Enhancements

The K-1 II’s main addition is an ‘accelerator unit,’ which is a pre-processor that sits between the 36MP CMOS sensor and the PRIME IV image processor. Ricoh says that this pre-processor increases the signal-to-noise ratio, thus reducing noise, which implies it’s a a noise reduction process. Ricoh told us that the accelerator unit, which was found on other Pentax models like the K-70, was not ready for the K-1 when it launched.

Thus, the company has increased the top ISO to 819,200 – a big jump from 209,400 on the original model. We’d be shocked if anything near that ISO is usable, seeing how the K-1 looked at 209,400 (hint: poor, like all cameras in its class), but we’ll find out soon enough.

Ricoh says that ‘deep blues’ and ‘lively greens’ are more ‘true to life,’ as well.

The unit does put the hurt on battery life, though, reducing it to 670 shots per charge from 760 shots on the original K-1.

Pentax K-1 II: Shifting Pixels

Pixel Shift is a clever feature first seen on the K-3 II that uses the in-body image stabilization system to create a high resolution image by combining four images that are offset by a single pixel. This process cancels out the Bayer color array used on nearly all digital cameras, which both eliminates color aliasing and artifacts and removes the need to demosaic, thus improving resolution.

Pixel Shift is best-suited for shooting still objects on a tripod. On the K-1 II Ricoh is trying something that sounds a bit crazy, by using the natural shake of your hands to collect the four images needed to combine into a single high-res image. Ricoh calls this called Dynamic Pixel Shift Resolution mode, and we can’t wait to see how well it works.

What hasn’t changed

As mentioned earlier, the K-1 II retains the 36MP full-frame CMOS sensor from its predecessor, along with its PRIME IV image processor, 33-point AF system and 5-axis in-body image stabilization. In addition to its Pixel Shift and shake reduction duties, the IBIS system also allows for automatic horizon correction and AA-filter simulation.

The unique ‘Cross-Tilt’ LCD makes an appearance on the Mark II, complete with LEDs that can shed light on nearby controls. You can compose your photos through a large pentaprism viewfinder with a magnification of 0.70x and 100% coverage (naturally).

The built-in GPS on the K-1 II not only allows for geolocation but is also used for the camera’s Astrotracer feature, which lets you capture celestial bodies without star trails.

We could keep listing the K-1 II’s features, but since they’re identical to those on the original, check out our review of that camera for all the details.

Good News for K-1 owners

Nobody wants to be left out in the cold when their camera gets replaced. Ricoh hasn’t forgotten this, and will be giving current K-1 owners the opportunity to upgrade to the K-1 Mark II for a limited time.

Between May 21st and September 30th (in North America), K-1 owners can ship their cameras to a Ricoh service center, where the logic board will be replaced with the one found in the Mark II. Pricing for the upgrade is set at $ 550 in the US and $ 690 CAD in Canada.

Pricing and Availability

The K-1 Mark II will begin shipping this April. It will be sold body-only for $ 1999 or with the HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR lens for $ 2399.

If you’re a current K-1 owner, are you thinking about upgrading to the Mark II? Let us know in the comments.

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Associated Press photographer’s video shows ‘travel photographers’ staging photos

22 Feb

Last month, Associated Press photographer A. M. Ahad shared a video on Facebook that shows something disappointing… if not terribly surprising. His video, captured at a train station in Bangladesh, shows photographers shooting staged images of a boy who is posing out a train window as if in prayer.

Ahad criticized the photographers’ actions, saying such staging is used in an effort to capture award-winning images at the expense of professional etiquette.

Speaking with PetaPixel, Ahad explained that a large number of camera-wielding tourists show up for Eid al-Adha and Bishwa Ijtema to snap images that are often posed: “They are all around making images and ruining things for professional photographers.”

“Bangladesh is not for people like this who came to ruin professional photographers etiquette for the sake of winning medal,” Ahad said in the Facebook post that accompanies the video, expressing frustration that photographers who are staging scenes are getting in the way of actual professionals. “Stop telling us that you are foreign media covering the congregation when you have no proof to show us […] just stay home, for goodness sake.”

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The Chroma is a lightweight, affordable, easy-to-use 5×4 field camera

22 Feb

A UK photographer and custom-built camera maker has launched a Kickstarter campaign to help fund a new 5×4-inch field camera that he intends to be lightweight, easy-to-use, unique, affordable and upgradable… as well as a bit funky. To that end, the Chroma will be made from brightly colored sheets of acrylic, laser-cut for accuracy.

Steve Lloyd has spent fifteen years creating custom cameras as one-offs, but decided to make a production 5×4 camera using modern materials and technologies.

The 3mm and 5mm acrylic sheets he uses allow cameras to be made in a range of colors—including Red, Pink, Blue, White, Green, Matte Black, Glossy Black, Purple and Yellow—while the lightweight nature of the material means the Chroma will weigh much less than a traditional wooden model. Even with the ground glass screen, the camera weighs just 1592g.

Here’s a quick intro to the colorful Chroma camera:

Lloyd has designed Chroma to provide a good range of movements in both the front and rear standards, with 40mm of rise and fall when both standards are in operation, and 30mm of shift in either direction at the front. Both standards allow 45° of tilt forwards and backwards, and Lloyd claims swing is limited only by the coverage of the lens in use and the ability of the bellows to flex.

The camera uses a clever back that is fixed with magnets built into the body, so it can be lifted off and rotated in seconds. The back is designed for standard 5×4 double dark slides, and Lloyd says he is working on designs for roll film and Graflok backs, as well as one for wet plate holders.

When fully extended the Chroma can stretch its bellows to 300mm, and it can be used with focal lengths from 65mm to 280mm. In the extended pose the camera measures 180x330x235mm, but it folds away to just 210x180x117mm.

The camera comes with a ground glass screen and a pin-hole lens to get new 5×4 photographers started. Users can choose Copal 0, 1 or 3 sized holes in a Linhof/Wista-style lens board, and those with existing Linhof/Wista boards will be able to fit them.

The Chroma starts at £250 (approx $ 350) for Kickstarter backers, and Lloyd says he expects to deliver between June and November 2018 according to the pledge you choose. Of course, no crowdfunding campaign is a guarantee, but given he’s already raised over $ 40K on a $ 13K goal, Lloyd is well on his way to a successful delivery.

For more information or if you want to put down a pledge and pick up a Chroma for yourself, visit the camera’s Kickstarter page.

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