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Posts Tagged ‘Breakthrough’

Breakthrough announces first third-party EF to RF Drop-In Filter Adapter

19 Sep

San Francisco-based Breakthrough Filters has announced an all-new EF to RF filter adapter. This is the first EF to RF drop-in filter adapter released not made by Canon.

Breakthrough’s EF to RF Drop-In Filter Adapter is loaded with a variety of hardware improvements. The adapter has an all-metal aluminum alloy construction and includes dust and water resistance. The weather-sealed adapter has rubber gaskets around both the filter and rear mounts. The adapter includes a detachable tripod food and accepts mounting plates for ballheads, arca plates and more. Further, the interior has been blacked out to reduce specular reflections.

In terms of compatibility, Breakthrough states that you can mount your EF lenses to RF mounts on cameras such as the Canon EOS R, R5 and R6 cameras and the RED Komodo. The adapter supports autofocus, image stabilization and EXIF data recording.

The Breakthrough EF to RF Drop-In Filter Adapter includes numerous features, such as an all-metal construction, weather sealing and more. Click to enlarge. Image credit: Breakthrough

You can use either Canon’s own drop-in filters or filters from Breakthrough. Breakthrough Photography announced many drop-in filters in August, you can learn more about them by reading our coverage.

The Breakthrough EF to RF Drop-In Filter Adapter is available for preorder for $ 199 USD. The first 500 orders will also ship with a free Breakthrough XF Clear drop-in filter. Shipping is expected to begin on November 16.

Breakthrough offers many drop-in filters for their new filter adapter and for the existing Canon EF-EOS R drop-in filter adapter. Image credit: Breakthrough

This is a sizable discount when compared to Canon’s own EF-EOS R Drop-In Filter Mount Adapter. The version that comes with a circular polarizing filter costs $ 300 and the version that includes a drop-in variable ND filter is $ 400. If you already own a Canon Adapter and want to purchase Breakthrough’s new EF to RF drop-in filter adapter, Breakthrough is offering a buyback program.

After your new filter arrives, you can use an included pre-paid return label to ship your Canon unit back for a refund on your transaction with Breakthrough. Sending a regular Canon EF to RF adapter nets you a $ 69 refund and Canon’s Drop-In Filter Adapter is worth $ 149.

Breakthrough is offering a Canon Adapter Buyback program for purchasers of the new Breakthrough filter adapter. Click to enlarge. Image credit: Breakthrough

To learn more about the new Breakthrough EF to RF Drop-In Filter Adapter, head to Breakthrough’s website.

Articles: Digital Photography Review (dpreview.com)

 
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Breakthrough Photography announces more than 20 drop-in filters for Canon’s EF-RF adapter

11 Aug

San Francisco-based Breakthrough Photography has announced the first third-party drop-in filters for Canon’s EF-RF drop-in filter mount. This filter mount allows users to adapt EF or EF-S lenses to EOS R series mirrorless cameras with a dedicated space for A-type drop-in filters.

Since the EF-EOS R drop-in filter mount adapter first launched, users have been limited to Canon’s own circular polarizing (CPL) filter or variable neutral density (ND) filter. With Breakthrough Photography’s new line of compatible drop-in filters, users will have access to more than 20 different X2 and X4 filters.

Breakthrough Photography’s new drop-in filter line. Image credit: Breakthrough Photography

The design of Breakthrough Photography’s new drop-in filters includes a rubberized grip to make it easier to put the filter in and remove it from the adapter. For filters with adjustment, there is a large ridged adjustment wheel. Each drop-in filter is also color-coded to make filters identifiable with a quick glance, which will be particularly useful for photographers who purchase one of Breakthrough’s available filter kits, such as the Essential X2, Essential X4 or Complete B&W filter kits.

The Breakthrough drop-in filters include a large adjustment wheel and a rubberized grip. The filters are also clearly labeled and color-coded. Image credit: Breakthrough Photography

Before delving into specific available filters, let’s consider the difference between Breakthrough’s X2 and X4 filters. Looking at the X2 CPL versus the X4 CPL, the latter filter has an average light transmission of 50.64% whereas the former has an average light transmission of 42.44%. According to Breakthrough Photography, the X4 CPL ‘moderately outperforms’ the Canon drop-in CPL filter, whereas the X2 CPL has ‘slightly less’ light transmission than the Canon filter. In terms of color cast, the X4 CPL ‘moderately outperforms’ the Canon filter.

Breakthrough states that their X4 CPL filter has the best light transmission among its competitors. We can also see here that the Canon drop-in CPL filter performs well, as does Breakthrough’s more affordable X2 CPL filter. Image credit: Breakthrough Photography

The X2 ND filters and X4 ND filters don’t have a direct Canon competitor because Canon offers a variable ND filter rather than a series of solid drop-in ND filters. With that said, Breakthrough Photography claims that the X4 ND outperforms ‘industry-leading manufacturers such as Singh-Ray and B+W and Lee’ due in part to neutral color transmission.

Image credit: Breakthrough Photography

Canon’s EF-EOS R drop-in filter mount includes a 1.5-9 stop variable ND filter. In addition to solid ND filters in 3, 6, 10, 15 and 20 stop strengths, Breakthrough’s new drop-in filter line includes a pair of variable ND filters. The first, VND-R, is adjustable from 2 to 11 stops. There is also a stronger Dark VND-R, allowing adjustment from 10 to 16 stops of ND strength. Breakthrough states that the VND-R and Dark VND-R drop-in filters eliminate the ‘X’ pattern sometimes seen on VND filters with wide-angle lenses. The Canon drop-in VND is an excellent filter but Breakthrough states that their filters outperform it. You can view a transmission percentage comparison below.

There are four CPL filters in the line aimed at black and white photography: Red, orange, yellow and green. They are available in a bundled set.

Comparing Breakthrough’s available black and white CPL filters. Image credit: Breakthrough Photography

Rounding out the series of drop-in filters are Night Sky, infrared 720nm and a pair of clear filters. Digital cameras, such as the EOS R, RP, R5 and R6, include a permanent IR-cut filter over the image sensor. With the IR filter, some residual light can reach the sensor and show the scene in a way different from how it appears in the visible light spectrum. The Night Sky filter is designed to reduce light pollution and show night scenes with color neutrality.

Breakthrough’s Night Sky filter aims to reduce the impact of light pollution on colors in night sky images. The image on the left was captured without the Night Sky filter, whereas the image on the right was shot using the Night Sky filter. Image credit: Breakthrough Photography

Breakthrough Photography expects the filters to begin shipping in late September. Prospective customers can preorder individual filters and filter kits now through Breakthrough Photography’s website. Prices range from $ 80 to $ 200 for individual filters. There are also savings available if customers opt for a filter kit rather than purchasing a set of individual filters. It’s worth noting that all Breakthrough Photography filters include a free 25-year ‘Ironclad Guarantee’. If you’d like to learn more about long exposure photography while you wait for your new filters to arrive, Breakthrough Photography offers a free 52-page long exposure photography guide, which you can learn more about here.

Articles: Digital Photography Review (dpreview.com)

 
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Sensor breakthrough: Sony has developed a backlit CMOS sensor with global shutter

17 Feb

Sony has made something of a breakthrough in sensor development, announcing a new backside-illuminated stacked sensor that can read out every pixel simultaneously to enable global shutter. While the company has only made it work with a 1.46-million-pixel sensor so far, the nascent technology has significant potential.

The sensor is able to read out from every pixel instantly because each pixel has its own analog-to-digital converter (ADC) buried in a ‘bottom chip,’ which is stacked beneath a ‘top chip’ containing the active, photosensitive pixels. This allows all exposed pixels to be read simultaneously, rather than sequentially row-by-row as is done with traditional CMOS sensors containing far fewer ‘column parallel’ ADCs.

This instant read-out avoids the rolling shutter distortion caused by the time delay as each row of pixels is recorded one after the other. In most existing chips, fast-moving objects become warped as they progress across the frame, because the pixels at the top of the sensor were read earlier than those at the bottom. This can also lead to banding under certain types of artificial lighting.

Global shutter—reading out all of the pixels at once—solves both these problems.

Shot with an exposure time of 0.56ms

Sony claims its sensor is the first back-illuminated high-sensitivity CMOS sensor with pixel-parallel ADCs and a pixel-count greater than 1 million.

While one million pixels may not be much good to photographers, this is a big step towards the production of a photographic quality sensor. Chips with ‘global shutter’ need only an electronic shutter to record undistorted action pictures, boast the ability to use short electronic shutter speeds with flash, and are able to work under fluorescent and solid state (LED) lighting without banding.

In the end, a global shutter sensor like this be useful for both still and movie photographers.

It’s also a major improvement over current global shutter CMOS sensors, which have a photosensitive pixel, and then a ‘storage’ pixel that the charge is transferred to after the exposure is made. This storage pixel holds the charge until the column ADCs read out, row by row. The problem with this approach is that your active pixel area now has a bunch of dead space per pixel taken up by the ‘storage pixel’.

By going BSI and stacked, we believe this technology eliminates the need for the storage pixel entirely, because you can read all the pixels at once at the end of your exposure.

The company says it has had to include 1000x more ADCs than it would normally in a 1MP sensor. The extra ADCs would require far more current, so Sony developed low current, compact ADCs for this chip. Additionally, new high speed data transfer construction allows for the fast read and write speeds required to operate all the ADCs in parallel and transfer the digital data.

While it might be some time before one is ready for use in a standard camera, this is a big step forward for global shutter sensor technology, which has traditionally been plagued by higher noise levels and lower dynamic range.

When will we see it scaled up to larger, smaller pixel pitch higher-resolution sensors? Hard to tell, but we’re keeping our fingers and toes crossed.

Press Release

Sony Develops a Back-Illuminated CMOS Image Sensor with Pixel-Parallel A/D Converter That Enables Global Shutter Function

Sony CorporationSony Semiconductor Solutions Corporation Tokyo, Japan – Sony Corporation today announced that it has developed a 1.46 effective megapixel back-illuminated CMOS image sensor equipped with a Global Shutter function*1. The newly developed pixel-parallel analog-to-digital converters provide the function to instantly convert the analog signal from all pixels, simultaneously exposed, to a digital signal in parallel. This new technology was announced at the International Solid-State Circuits Conference (ISSCC) on February 11, 2018 in San Francisco in the United States.

CMOS image sensors using the conventional column A/D conversion method*2 read out the photoelectrically converted analog signals from pixels row by row, which results in image distortion (focal plane distortion) caused by the time shift due to the row-by-row readout.

The new Sony sensor comes with newly developed low-current, compact A/D converters positioned beneath each pixel. These A/D converters instantly convert the analog signal from all the simultaneously exposed pixels in parallel to a digital signal to temporarily store it in digital memory. This architecture eliminates focal plane distortion due to readout time shift, making it possible to provide a Global Shutter function*1, an industry-first for a high-sensitivity back-illuminated CMOS sensor with pixel-parallel A/D Converter with more than one megapixel*3.

The inclusion of nearly 1,000 times as many A/D converters compared to the traditional column A/D conversion method*2 means an increased demand for current. Sony addressed this issue by developing a compact 14-bit A/D converter which boasts the industry’s best performance*4 in low-current operation.

Both the A/D converter and digital memory spaces are secured in a stacked configuration with these elements integrated into the bottom chip. The connection between each pixel on the top chip uses Cu-Cu (copper-copper) connection*5, a technology that Sony put into mass production as a world-first in January 2016.

In addition, a newly developed data transfer mechanism is implemented into the sensor to enable the high-speed massively parallel readout data required for the A/D conversion process.

*1:A function that alleviates the image distortion (focal plane distortion) specific to CMOS image sensors that read pixel signals row by row.*2:Method where the A/D converter is provided for each vertical row of pixels in a parallel configuration.*3:As of announcement on February 13, 2018.*4:As of announcement on February 13, 2018. FoM (Figure of Merit): 0.24e-?nJ/step. (power consumption x noise) / {no. of pixels x frame speed x 2^(ADC resolution)}.*5:Technology that provides electrical continuity via connected Cu (copper) pads when stacking the back-illuminated CMOS image sensor section (top chip) and logic circuits (bottom chip). Compared with through-silicon via (TSV) wiring, where the connection is achieved by penetrating electrodes around the circumference of the pixel area, this method gives more freedom in design, improves productivity, allows for a more compact size, and increases performance. Sony announced this technology in December 2016 at the International Electron Devices Meeting (IEDM) in San Francisco.

Main FeaturesGlobal Shutter function*1 achieved in a high-sensitivity back-illuminated CMOS image sensor by using the following key technologies:

Low-current, compact pixel-parallel A/D converter In order to curtail power consumption, the new converter uses comparators that operate with subthreshold currents, resulting in the industry’s best-performing*4, low current, compact 14-bit A/D converter. This overcomes the issue of the increased demand for current due to the inclusion of nearly 1,000 times as many A/D converters in comparison with the traditional column A/D conversion method*2.

Cu-Cu (copper-copper) connection*5 To achieve the parallel A/D conversion for all pixels, Sony has developed a technology which makes it possible to include approximately three million Cu-Cu (copper-copper) connections*5 in one sensor. The Cu-Cu connection provides electrical continuity between the pixel and logic substrate, while securing space for implementing as many as 1.46 million A/D converters, the same number as the effective megapixels, as well as the digital memory.

High-speed data transfer construction Sony has developed a new readout circuit to support the massively parallel digital signal transfer required in the A/D conversion process using 1.46 million A/D converters, making it possible to read and write all the pixel signals at high speed.

Articles: Digital Photography Review (dpreview.com)

 
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This ‘metalens’ breakthrough may revolutionize lenses as we know them

05 Jan
Image credit: Jared Sisler/Harvard SEAS

Until recently, metalenses—flat ‘lenses’ that can focus light using nanopillars on their surface—were a cool-but-limited area of study when it came to photography. Sure, these flat lenses are 100,000x thinner than glass, but they could only work with a limited range of colors, making it unlikely they’d appear in a cameras module any time soon.

That all changed this week, however, when a team at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) announced that they had succeeded in developing the first metalens that can focus the entire spectrum of visible light, including white light, onto a single point in high resolution.

This is a huge breakthrough, and a big leap forward from the same teams’ announcement last February that they had managed to focus all the colors from blue to green.

Image credit: Jared Sisler/Harvard SEAS

The research was published in the journal Nature Nanotechnology, where the team describes a metalens that uses “an arrays of titanium dioxide nanofins to equally focus wavelengths of light and eliminate chromatic aberration.” In other words: where a traditional lens needs multiple curved glass elements of varying thicknesses to focus the entire spectrum of visible light onto a single point, this flat metalens does the exact same thing using nano structures.

The details of how this is achieved can get a bit complicated—involving how they pair and space the ‘nanofins’ on the metalens itself—but the result is easy enough to understand: an achromatic flat lens that comes with three very big advantages over traditional glass lenses, as the paper’s lead author Federico Capasso explains:

Metalenses are thin, easy to fabricate and cost effective. This breakthrough extends those advantages across the whole visible range of light. This is the next big step.

The next step for the SEAS team is to make the lens bigger; they’re aiming for 1cm in diameter. In the meantime, Harvard has already licensed the tech to a startup for commercial development, so a real-world product that uses these metalenses might not be as far off as you might imagine.

To learn more, or dive into the research paper itself, head over to the SEAS website or read the full paper in Nature Nanotechnology.

Articles: Digital Photography Review (dpreview.com)

 
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Review of the Breakthrough Photography X4 CPL Circular Polarizing Filter

13 Dec

Make no mistake, this is, in fact, a review of the X4 Circular Polarizer from Breakthrough Photography. That being said, the entire subject requires a little bit of photographic geekiness in order to grasp the full understanding of the product being reviewed. So, if you absolutely don’t want to add any more brain wrinkles feel free to skip the next couple of paragraphs. If you do skip…shame on you.

Geeky stuff about polarizers

Polarizers – we’ve all heard of them and the majority of us photographers have used them extensively from one time or another. How do they work? And more importantly, how do you know when you’ve found a good one?

These are all great questions and oddly enough these things aren’t always well known by even some experienced shooters. Polarizers are just filters. These filters work to sift out polarized light which commonly occurs in our photographs from reflections and glare. The noticeable byproduct of this filtration is the reduction of said reflections and glare as well as the deepening of colors and most noticeably, the darkening of the sky.

Review of the Breakthrough Photography X4 CPL Circular Polarizing Filter

Polarizers come in two flavors: linear and circular. It’s somewhat of a weird concept as all polarizers are in fact linear…but not all linear polarizers are circular. That might sound slightly cryptic but that is not the intention.

At their most basic definition, the way polarizers work is to filter our non-linear rays of light. Circular polarizers further enhance this effect by adding what’s called a quarter-wave plate to the camera side of the linear polarizer. The quarter wave plate serves to essentially convert the incoming light into a helix and the polarization effect can then be dialed-in to whatever degree is needed. This is of great benefit because the majority of SLR and DSLR cameras are sensitive to polarization and linear polarized light can cause internal camera metering to malfunction.

The X4 CPL Circular Polarizing Filter

Now that you’ve had a crash course in how circular polarizers work, it’s time to talk about the X4 CPL Circular Polarizing Filter by Breakthrough Photography. This will be my fourth time evaluating filters by the folks at Breakthrough. With each piece of gear I have been consistently impressed with the build and optical quality to such an extent to where I find it difficult to list any faults. The X4 CPL is no different.

Breakthrough Photography currently markets this polarizer as being the “world’s most advanced circular polarizer” so I put the X4 CPL Circular Polarizing Filter to the test to see just how this claim holds up in real-world shooting.

Build Quality

The construction of theX4 CPL Circular Polarizing Filter is blackened brass, much like their line of X4 ND filters. The filter housing is robust and feels extremely sturdy. Deep traction grooves are cut around the bezel and provide for a solid grip even with gloved or wet hands.

Review of the Breakthrough Photography X4 CPL Circular Polarizing Filter

An interesting property of brass is that unlike other metals such as aluminum it is non-galling. This means that it is less likely to bind and become stuck when stacking multiple filters. The filter bezel turns quite smoothly when engaging or disengaging the polarization effect.

The optical element is made from SCHOTT Superwhite B270® optical glass. Each side of the glass is then treated with eight layers of Breakthrough Photography’s proprietary nanotec® and MRC (multi-resistant coatings) optical coatings which cause dirt and moisture to essentially slide right off of the glass itself.

X4 CPL Circular Polarizing Filter

Overall, the build quality of theX4 CPL Circular Polarizing Filter is exceptional and it looks great to boot. The company also backs the filter with a 25-year guarantee.

Optical Performance

Of course, the real question about the X4 CPL concerns its optical quality, which in turn will greatly impact the final quality of your finished photographs. When it comes to photography filters, the sharpness, vignetting, and color cast, are the three main points of interest for most photographers.

While it’s great to talk about all these points actual test images speak louder than words. So have a look at the sample images as you read my thoughts on the results and judge for yourself.

Sharpness

In terms of sharpness, the X4 CPL exceeds all expectations. No image degradation was observed even at the maximum strength filtration.

X4 CPL Circular Polarizing Filter

To left is the image without the X4 CPL applied. The image at the right is with the X4 CPL. Both zoomed to 1:1 for comparison.

Images remained crisp and detail was not lost due to the addition of the filter.

Color Cast and Vignetting

A common problem seen with polarizers and most filters, in general, is the unwanted color casting sometimes encountered. The color cast happens due to the coloration of the optical glass and often worsens in lower quality filter systems.

X4 CPL Circular Polarizing Filter

An image with a high color cast from an ND filter. Low-quality polarizers can carry the same effects.

The images produced by the X4 CPL seem to be completely free of this discoloration just as they are advertised. No discernible color cast was observed in any of the test images I made using the filter.

X4 CPL Circular Polarizing Filter

The same is true for vignetting. Darkening of the corners of the photos was not observed even at the strongest filtration setting.

X4 CPL Circular Polarizing Filter

Final Thoughts on the X4 CPL

There’s a certain feeling of uneasy optimism which begins to surface whenever I come across gear which does not seem to have any obvious weak points.”Have I missed something? Is this really that good?”

Having reviewed multiple pieces of kit from Breakthrough Photography I can say that they have consistently produced insanely high-quality photographic gear that is innovative, sturdy, and relatively cost-effective. I use quite a few of their filters in my own personal photography work and have put them into environments from Death Valley to the coast of the Atlantic Ocean and everywhere in between (or least it seems).

The X4 CPL has thus far given no reason for me to believe that its quality would not serve any serious photographer’s needs for years to come. The build quality is heavy-duty and the image quality, especially sharpness, is outstanding. It retails for $ 129-159 USD (depending on filter size) at the time of this review. Find out more details about the X4 CPL here, or shop Amazon for the size you need here.

Rating 5/5 stars – my first ever! 

The post Review of the Breakthrough Photography X4 CPL Circular Polarizing Filter by Adam Welch appeared first on Digital Photography School.


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Breakthrough Photography’s GND and ND filters are the first made with tempered glass

06 May

Breakthrough Photography has launched what it claims are the first-ever neutral density and graduated neutral density filters made with tempered glass. The new X4 GND, X4 ND Square, and Dark CPL filters are being funded through Kickstarter, where both 100mm and 150mm versions are detailed. According to Breakthrough, the X4 GND is the sharpest GND filter ever, while both the GND and ND filters are the ‘world’s most color neutral.’

Both the X4 GND and X4 ND filters are made with Schott B270 tempered glass which, says Breakthrough, results in ‘an incredibly durable filter’ that can withstand drops onto hard surfaces. Both sides of the tempered glass are refined with an MRC16 coating and a nanotec coating, the combination of which cuts down reflections and makes cleaning easier.

Joining the two X4 filters is the Dark CPL, a filter that combines X4 ND and X4 CPL filters. Breakthrough explains that while stacking these two filter types typically produces a vignetting effect at about 19mm with a full-frame sensor, the new Dark CPL version gets rid of that vignette down to 16mm on the same full-frame sensors. The company is offering Dark CPL for Fuji, Leica, Carl Zeiss, Canon, Sony, Nikon, and Schneider Xenon lenses, among others that weren’t specified. 

Breakthrough plans for the Dark CPL 46mm – 86mm to retail at up to $ 199, the Dark CPL 95mm/105mm at up to $ 259, the X4 GND 100x150mm at up to $ 199, the X4 GND 150x170mm at up to $ 249, and the X4 ND Square at prices ranging from $ 149 to $ 219 depending on both density and size. The company is offering various discounts on these filters to those who back the Kickstarter campaign. Shipping to backers is estimated to start this upcoming August.

Via: CanonRumors

Articles: Digital Photography Review (dpreview.com)

 
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Breakthrough Photography claims X3 CPL is world’s sharpest circular polarizer

11 Nov

Breakthrough Photography, a San Francisco-based startup, is seeking funding for what it claims is the ‘world’s sharpest and most color neutral circular polarizer,’ the X3 CPL. This polarizer is constructed with Schott B270 optical glass from Germany, MRC16 and nanotec coatings, a weather-sealed brass Traction Frame, and new American-made CrystalVision CPL film. Read more

Articles: Digital Photography Review (dpreview.com)

 
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Breakthrough Photography launches ultra-slim UV and ND filters

11 Nov

Breakthrough Photography has introduced its X-Series lineup of ultra-slim UV and ND filters, which are available for pre-order now through the company’s Kickstarter campaign. The series consists of three filter models, the X3 Traction Filter, X2 Traction Filter, and the X1 Black Filter, with pre-orders set to start shipping next month. Read more

Articles: Digital Photography Review (dpreview.com)

 
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Lytro CEO admits layoffs, promises breakthrough products in 2014

13 Aug

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Lytro CEO Jason Rosenthal has acknowledged that the company made a ‘small number’ of layoffs earlier this year and that there are some ‘kinks’ to be worked out with its unique ‘light field’ camera. Meanwhile, according to an article by tech blog SFGate, industry sources report that the Lytro camera ‘isn’t selling well so far’, due to its price and lack of appeal to professional photographers. Rosenthal is, however, bullish on the future of the company, promising ‘multiple […] breakthrough products’ in 2014. More details are available after the link.

News: Digital Photography Review (dpreview.com)

 
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NVIDIA vs iZ3D – New 3D Breakthrough 1/3

18 Dec

Imagine pop-out IMAX 3D in your home video games! Up until now, NVIDIA has been the only provider of software that does this. This is the first and only look at the NEW iZ3D stereoscopic 3D drivers that are expected to reshape the industry. This is a portion of mtbs3D.com’s keynote at Dimension-3 Expo. Gamers and game developers should join the site!
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