RSS
 

Posts Tagged ‘2500’

Lensrentals bought a $10K machine to test the flange-to-sensor distance of more than 2,500 cinema cameras

04 Jun

Roger Cicala and his team over at Lensrentals have made the most of their COVID-19 downtime by spending the past few months painstakingly measuring the flange-to-sensor distance of more than 2,500 cameras to see just how much variation there is from cinema camera to cinema camera (even identical models).

In the first of a two-part series on the testing and results, Roger breaks down why flange-to-sensor distance is important, details ‘how accurate is possible,’ explains how the Lensrental team went about testing and shares the first bits of data from the meticulous testing of popular cinema cameras.

This is what using a $ 10,000 Denz Flange Depth Controller looks like.

To achieve this testing, Roger invested in a Denz Flange Depth Controller, which costs about $ 10,000 and can measure flange depth to the nearest 0.01mm. Even after receiving the new equipment, he and Aaron spent a month confirming its accuracy before eventually training ‘Poor Ben’ on how to use the machine.

Over the following weeks, Ben ended up measuring and re-measuring the flange-to-sensor distance of more than 2,500 cameras worth roughly $ 10M (yes, million).

The red circles denote Canon Cinema cameras that had more variation than is to be expected for the flange-to-sensor distance.

For this first part of the series, Roger breaks down the spread of Canon Cinema Cameras, Sony Cinema Cameras, non-Canon EF-mount cameras and Blackmagic cameras to show just how much variation the models and individual cameras had. To his surprise, there were a few outliers, but as always, Roger seems to have gotten to the bottom of it and has learned through this testing that the Lensrentals team can and will be able to better screen these less-accurate cameras so everything going out their doors is up to snuff.

You can check out the full breakdown on the Lensrentals blog, linked below. Part two will be out in the near future and will address the flange-to-sensor distance of ‘SLR style’ camera bodies.

Lensrentals: The Great Flange-to-Sensor Distance Article

Articles: Digital Photography Review (dpreview.com)

 
Comments Off on Lensrentals bought a $10K machine to test the flange-to-sensor distance of more than 2,500 cinema cameras

Posted in Uncategorized

 

$2,500 Sony a7S II vs $50,000 ARRI Alexa Mini: Can you tell the difference?

07 Feb

Brent Barbano—co-founder of camera rental community ShareGrid—recently took a trip to Flashbox Films in Hollywood to meet up with co-owner Will Kamp and do one of those “affordable camera vs crazy expensive camera” tests the internet seems to love (and hate) oh so much.

So what did they test? They put the $ 2,500 Sony a7S II, an affordable filmmaking favorite, up against the $ 50,000+ ARRI Alexa Mini, a professional-grade filmmaking monster. Here’s how Brent introduces the comparison:

The Sony a7s II has been a game-changer for filmmakers and creatives across the world. Cinematographers and photographers have been creating amazing images with this mirrorless camera that can rival some of the best. So, we thought we’d put it to the test and do a side-by-side comparison of the Sony a7S II and the ARRI Alexa Mini. Can you tell the difference?

Well… can you? Check out the video above to watch the footage, or scroll through the slides in the gallery below:

$ (document).ready(function() { SampleGalleryV2({“containerId”:”embeddedSampleGallery_8545856720″,”galleryId”:”8545856720″,”isEmbeddedWidget”:true,”selectedImageIndex”:0,”isMobile”:false}) });

Brent and Will were obviously impressed by just how similar the final footage turned out to be, and if you’re curious how you did on this ‘test,’ you’re in luck: ShareGrid was kind enough to give DPReview readers the answer key early.

The initial plan was to update it in the video description on YouTube this Friday, but if you’ve made your picks, you can scroll down and see which slide was which down below.

Answer Key

Some of you may have noticed, others may not, but the cameras didn’t actually switch sides between shots. The Sony was always on one side, and the ARRI was always on the other. But… which was which? It turns out A was Sony, and B was ARRI:

SLIDE 1

A: Sony a7S II

B: ARRI Alexa Mini

SLIDE 2

A: Sony a7S II

B: ARRI Alexa Mini

SLIDE 3

A: Sony a7S II

B: ARRI Alexa Mini

SLIDE 4

A: Sony a7S II

B: ARRI Alexa Mini

Articles: Digital Photography Review (dpreview.com)

 
Comments Off on $2,500 Sony a7S II vs $50,000 ARRI Alexa Mini: Can you tell the difference?

Posted in Uncategorized

 

Chronos 1.4 is a $2500 camera that can shoot at 21,650 fps

27 Oct

Late last month, a homemade camera dubbed Chronos surfaced alongside the claim that it can shoot at speeds up to 21,650 fps. The camera was notable not only for its ultra-high-speed shooting capabilities, but also its comparitively affordable $ 2500 price tag. The camera was the subject of a recent YouTube video showing off its various features and functionalities.

Chronos 1.4 is the brainchild of engineer David Kronstein, who first demonstrated the camera’s hardware and recording capabilities with a production-level prototype under his YouTube handle ‘tesla500.’ The camera can record 1,057 fps at 1280 x 1024, and up to 21,650 fps at lower resolutions. Kronstein lists the pre-production camera features as the following:

  • 1.4 Gigapixel per second throughput
  • 1280 x 1024 at 1050 fps
  • Lower resolutions at higher speeds
  • 8, 16, or possibly 32GB RAM
  • Storage on SD card, USB drive, SATA hard drive
  • Raw video saving
  • No PC needed for operation
  • AC Adapter or battery (1.75 hour per charge)

You can see a full review of the camera in Taofledermaus’s new video below. Per his video, it seems the current plan is to launch the camera on GoFundMe rather than Kickstarter in the next month or so, but details on that are still slight at this time.

Via: PetaPixel

Articles: Digital Photography Review (dpreview.com)

 
Comments Off on Chronos 1.4 is a $2500 camera that can shoot at 21,650 fps

Posted in Uncategorized

 

Pigment Library: Harvard’s Collection of 2,500 Global Colors

19 Feb

[ By WebUrbanist in Culture & History & Travel. ]

pigment glass cabinetry

Looking as much like a mad science laboratory as a conservator’s dream workshop, this pigment library is populated with color samples from around the world, all helping preservationists maintain and restore historical works of art and design.

historical pigment collection

pigment sample jars

The Straus Center for Conservation and Technical Studies at the Harvard Art Museums puts is jars, bottles and glasses on display for the public to see in glass cabinetry, but also uses them like a witch doctor would employ esoteric medicines. An analogy could also be drawn to seed vaults, which likewise store and preserve precious and sensitive materials for future use.

pigments of the world

From Colossal, “The Forbes pigment collection was started by its namesake—Straus Center founder and former Fogg Art Museum Director Edward Forbes who began the collection at the turn of the 20th century. Forbes would collect his samples from his travels all over the world, bringing back pigments from excavated sites at Pompeii to rare lapis lazuli found in Afghanistan.”

pigment library harvard

Forbes became interested in preservation when a 14th-Century piece he purchased began to visibly fade, sparking him to learn more about the materials and processes around paintings and their preservation.

pigments on display

The origins of the various colors are often stories in themselves, from modern synthetics to obscure organics, like an ‘Indian Yellow’ made from the urine of cows fed only mango leaves. (Images via Peter Vanderwarker, Zak Jensen and Andrea Shea/WBUR)

Want More? Click for Great Related Content on WebUrbanist:

Lilliputian Library: 4500 Miniature Books Form Huge Collection

Peek into the astonishing collection of a miniature book enthusiast who may have the littlest huge library in the entire world.
Click Here to Read More »»


22 Global Tales of Ghost Towns and Abandoned Cities

What in the world could cause entire cities to become abandoned? Here are twenty-four haunting real-life ghost villages, towns and cities from around the world.
Click Here to Read More »»


The Ultimate Urban Camouflage Collection: 10 Strange Examples from Coke Suits to Camo Cars

Here is a selection of ideal urban camouflage perfect for blending into the city scenery and traveling around town unseen while exploring amazing urban …
Click Here to Read More »»


Share on Facebook



[ By WebUrbanist in Culture & History & Travel. ]

[ WebUrbanist | Archives | Galleries | Privacy | TOS ]


WebUrbanist

 
Comments Off on Pigment Library: Harvard’s Collection of 2,500 Global Colors

Posted in Creativity

 

20-Hour House: How to 3D-Print 2,500 Square Feet in 1 Day

14 Jan

[ By WebUrbanist in Conceptual & Futuristic & Technology. ]

3d printing building day

Combining ancient earthen-architecture approaches and cutting-edge robotic technologies, this contour crafting process promises a revolution in how we address one of our most basic and universal human needs: shelter.

Inventor and teacher Dr. Behrokh Khoshevis of University of Southern California points out that residential construction is labor-intensive, inefficient and hazardous. In short: it is overdue for a paradigm shift, one that not only automates and speeds up processes but also allows for mass customization and individualization.

3d printed architecture model

His Counter Crafting system “is a fabrication process by which large-scale parts can be fabricated quickly in a layer-by-layer fashion. The chief advantages of the Contour Crafting process over existing technologies are the superior surface finish that is realized and the greatly enhanced speed of fabrication” in part through the use of additives for faster hardening times.

3d building prototype printer

Steel reinforcement, plumbing and electrical can all be installed by robotic attachments as the concrete walls are poured. In turn, conventional shape and style limitations need not apply – curves are as simple to program as right angles. Part of the beauty of this system is that it cuts out the middle man – designs can go straight from the digital drawing board (CAD software) to the on-board computer.

3d printing on moon

Nor is this simply one man’s fantasy: “Contour Crafting has been under development under support from the National Science Foundation and the Office of Naval Research. Also, the application of CC in building adobe structures using inexpensive materials is being pursued in conjunction with the CalEarth organization.” Contour Crafting is also working with NASA to explore possibilities for 3D-printing structures in space.

Want More? Click for Great Related Content on WebUrbanist:

3D Printing Goes Giant: Print Your Own Home?!

Imagine programming a large-scale, 3D-printing robot to simply print your entire home, from top to bottom, within a matter of hours.
Click Here to Read More »»


Floating Islands Add 100,000 Square Feet to Downtown Seoul

Beyond merely extending solid ground like most downtown-on-the-water expansions, this project creates new mobile infrastructure right out on the waves.
Click Here to Read More »»


Slim Living: World’s Thinnest House is Just Four Feet Wide

The world’s smallest house is a four-foot-wide guest residence for artists, crammed between two more conventional buildings in Warsaw, Poland.
Click Here to Read More »»


Share on Facebook



[ By WebUrbanist in Conceptual & Futuristic & Technology. ]

[ WebUrbanist | Archives | Galleries | Privacy | TOS ]


WebUrbanist

 
Comments Off on 20-Hour House: How to 3D-Print 2,500 Square Feet in 1 Day

Posted in Creativity

 

20-Hour House: How to 3D-Print 2,500 Square Feet in 1 Day

12 Jan

[ By WebUrbanist in Conceptual & Futuristic & Technology. ]

3d printing building day

Combining ancient earthen-architecture approaches and cutting-edge robotic technologies, this contour crafting process promises a revolution in how we address one of our most basic and universal human needs: shelter.

Inventor and teacher Dr. Behrokh Khoshevis of University of Southern California points out that residential construction is labor-intensive, inefficient and hazardous. In short: it is overdue for a paradigm shift, one that not only automates and speeds up processes but also allows for mass customization and individualization.

3d printed architecture model

His Counter Crafting system “is a fabrication process by which large-scale parts can be fabricated quickly in a layer-by-layer fashion. The chief advantages of the Contour Crafting process over existing technologies are the superior surface finish that is realized and the greatly enhanced speed of fabrication” in part through the use of additives for faster hardening times.

3d building prototype printer

Steel reinforcement, plumbing and electrical can all be installed by robotic attachments as the concrete walls are poured. In turn, conventional shape and style limitations need not apply – curves are as simple to program as right angles. Part of the beauty of this system is that it cuts out the middle man – designs can go straight from the digital drawing board (CAD software) to the on-board computer.

3d printing on moon

Nor is this simply one man’s fantasy: “Contour Crafting has been under development under support from the National Science Foundation and the Office of Naval Research. Also, the application of CC in building adobe structures using inexpensive materials is being pursued in conjunction with the CalEarth organization.” Contour Crafting is also working with NASA to explore possibilities for 3D-printing structures in space.

Want More? Click for Great Related Content on WebUrbanist:

3D Printing Goes Giant: Print Your Own Home?!

Imagine programming a large-scale, 3D-printing robot to simply print your entire home, from top to bottom, within a matter of hours. Click Here to Read More »»


Floating Islands Add 100,000 Square Feet to Downtown Seoul

Beyond merely extending solid ground like most downtown-on-the-water expansions, this project creates new mobile infrastructure right out on the waves. Click Here to Read More »»


Slim Living: World’s Thinnest House is Just Four Feet Wide

The world’s smallest house is a four-foot-wide guest residence for artists, crammed between two more conventional buildings in Warsaw, Poland. Click Here to Read More »»


Share on Facebook

[ By WebUrbanist in Conceptual & Futuristic & Technology. ]

[ WebUrbanist | Archives | Galleries | Privacy | TOS ]


    




WebUrbanist

 
Comments Off on 20-Hour House: How to 3D-Print 2,500 Square Feet in 1 Day

Posted in Creativity

 

2,500 Kick Ass Photographers on Google+

07 Sep

2,500 Kick Ass Photographers on Google+

Over the past 2 years I have been super active on Google+. Google+ has emerged as the best community on the web for photographers. Photos look great there, but photos look great a lot of places on the web today. More significantly, Google+ is a positive, visually oriented community where photographers can meet, talk, get to know each other and develop and maintain friendships.

I’ve met more photography friends on Google+, than any other social network.

As Iv’e gotten involved with Google+ I’ve shared my circles of photographers. When Google+ first started out and I built my photographers circle up to 500, I shared it, then 1,000, then 1,500, then 2,000. Last week my photographers circle on Google+ hit 2,500 and I shared it again.

If you want to see some of the best photography being published on the web today, check out some of these photographers.

Part 1-5 (A-Da)
Part 2-5 (Da-Ho)
Part 3-5 (Ho-Mi)
Part 4-5 (Mi-Sh)
Part 5-5 (Sh-Z)


Thomas Hawk Digital Connection

 
Comments Off on 2,500 Kick Ass Photographers on Google+

Posted in Photography