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Rolling shutter

This is why Nikon ditched the mechanical shutter with the Nikon Z9

Feb 21, 2022 by John Aldred Add Comment
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Nikon has opened up to TechRadar about why they got rid of the mechanical shutter in the new Nikon Z9 and why it only features an electronic shutter. It seems like a strange move when Nikon has typically had the best and most reliable shutters over the years (with the fastest flash sync speeds), especially when Nikon’s not-a-flagship EOS R3 still utilises one. Essentially it boils down to new faster sensor technology.

Historically, electronic shutters on CMOS sensors have been plagued with one big issue; Rolling shutter. In a chat with TechRadar, Nikon said that an electronic shutter typically takes around 1/200th of a second for a full-frame sensor to read the entire scene. This is a long time in photographic terms. The Z9 sensor’s scan rate, they say, is 12x faster allowing for readouts faster than mechanical shutters.

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This video helps you understand the rolling shutter effect

Jul 3, 2017 by Dunja Djudjic Add Comment
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The rolling shutter effect creates weird patterns in the videos shot on most devices with CMOS sensors. Destin Sandlin from Smarter Every Day has created a fantastic video that explains this effect in a series of examples and comparisons.

As Destin points out, even the past three years he would film the effects of the rolling shutter every time he had his smartphone and a high-speed camera at the same time. As a result, he came up with plenty of examples to simulate the rolling shutter effect, and show us why and how it emerges.

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Sony’s new smartphone sensor shoots 1000fps and eliminates rolling shutter

Feb 8, 2017 by John Aldred 3 Comments
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It’s amazing how far sensor technology’s come in the last few years. We’ve had dual pixel autofocus, ultra high ISOs, and a whole bunch of other cool features show up. Phones and bigger camera sensors get more and more powerful with each new generation. This sensor from Sony, though, might be one of the most exciting yet.

Sony have developed a way to speed up the data acquisition in a CMOS sensor. It doesn’t quite make it a global shutter, but it speeds things up enough to be almost as good, but at a much lower cost. The acquisition becomes so fast, it’ll even record full HD 1080p video at up to 1,000 frames per second. The technology seems destined for smartphones at the moment, but I would bet it won’t be too long before it scales up.

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Canon’s new global shutter CMOS sensor will eliminate rolling shutter issues for video

Sep 1, 2016 by John Aldred 24 Comments
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Canon have announced that they’ve developed a new CMOS sensor with a global shutter and expanded dynamic range. While a wider dynamic range is always good for every camera use, the global shutter is huge for video shooters. Finally, we’ll be able to completely eliminate “jello wobble“, skew and other rolling shutter artifacts in DSLR video.

The fundamental difference between a traditional rolling shutter CMOS sensor and this new global shutter is the way it records the scene. Rolling shutter sensors capture a line one line at a time, sequentially. This means that, now matter how small, the beginning and end of your exposure happen at different points in time. A global shutter records what every single pixel sees at the exact same time.

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Test shows that Rolling shutter on the 5D Mark IV is a pretty big issue with 4K

Aug 30, 2016 by John Aldred 3 Comments
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The folks over at DPReview have got their hands on a 5D Mark IV. One of the tests they’ve performed with respect to video is how well it handles movement. Rolling shutter artifacts are just a fact of life with CMOS sensors. These types of sensor capture a scene line by line. They do it very quickly, although not quickly enough to prevent things from appearing to lean or just looking plain weird.

CMOS sensors have improved on the rolling shutter issues over the last few years. Canon’s new 5D Mark IV, however, doesn’t really seem to be that great at all. It’s certainly not as good as many were hoping for, especially if shooting 4K.

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Sony Shares Previews of Global Shutter on CMOS Sensors and Super Low Light Technology

Oct 26, 2015 by Udi Tirosh 1 Comment
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Sony, is not waiting to see who will win the sensor wars, it is defining the battlefield. With rumors of new technologies being around for a while now, Sony recently released two videos showing what’s in store for their future line of sensor technology.

Specifically, Sony demoed Starvis – an ultra low light technology designed for security cameras, though with the current low light / high ISO specs battle, it would not be surprising to find traces of this technology in their consumer line as well.

According to Sony :

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Sony A7r II Noise Comparison And Rolling Shutter Test

Aug 1, 2015 by Tiffany Mueller 4 Comments
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We’re starting to see more and more sample footage from the much anticipated Sony A7R ii, which is due to start shipping August 5th. U.K. based photographer, Jon Roberts, recently got his hands on one of the cameras and was nice enough to whip up this noise test, which compares the A7R II to it’s predecessor the A7R and, also, a Canon 5D MKiii. Roberts’ notes “that this wasn’t a very scientific test under lab circumstances…more of a rough and ready preview!”; however, it’s still a solid comparison with 100% crops.

The same goes for the rolling shutter test video Roberts has shared with us, which you’ll see farther down in this post along with an unboxing video–but, we’ll get to those in a minute.

First, take a look at the noise test. You can click the image to open a full size version in a new browser windor, or take a look at it over on Flickr.

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These Two Animations Are A Crash Course On How Sensors Work

May 10, 2015 by Udi Tirosh Add Comment
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Sensors are not as trivial a film. At least for me the simplicity of chemistry was always simpler than the magic of electronics.

Vimeo user Raymond Siri created two quick, yet informative animations for Canon that illustrate how CCD and CMOS sensors work.

The movies show how the light is filtered accumulated and then they show the difference in how the data is sent for storage.

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Why Leaf Shutter Lenses Matter

Sep 6, 2014 by R.J. Kern 17 Comments
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Have you wondered how something as simple as a lens design might shape your approach to off-camera lighting? And what if that same lens could shape how light is recorded within a camera? Add to that this bonus: this same lens might take what you already have and make it four times more effective?

We are approaching an era where camera sensors and mega-pixels no longer matter and the darling of the off-camera lighting world isn’t what you might guess.

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Move Over Schlieren, Scientists Are Upping The Sound Wave Photography Ante

Aug 5, 2014 by Tiffany Mueller Add Comment
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Okay, Schlieren photography is still pretty awesome. I’m actually still quite fascinated with our ability to photograph sound waves. I also love that I can do it myself for less than $10.  But, this project announcement from MIT is pretty wicked, too. Scientists from Microsoft, MIT, and Adobe have developed a way to use similar science to recover the audio from images taken using high speed cameras and even a prosumer level DSLR.

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Udi Tirosh: from diyphotography.netUdi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

Alex Baker: from diyphotography.netAlex Baker is a portrait and lifestyle driven photographer based in Valencia, Spain. She works on a range of projects from commercial to fine art and has had work featured in publications such as The Daily Mail, Conde Nast Traveller and El Mundo, and has exhibited work across Europe

David Williams: from diyphotography.netDave Williams is an accomplished travel photographer, writer, and best-selling author from the UK. He is also a photography educator and published Aurora expert. Dave has traveled extensively in recent years, capturing stunning images from around the world in a modified van. His work has been featured in various publications and he has worked with notable brands such as Skoda, EE, Boeing, Huawei, Microsoft, BMW, Conde Nast, Electronic Arts, Discovery, BBC, The Guardian, ESPN, NBC, and many others.

John Aldred: from diyphotography.netJohn Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter - and occasional beta tester - of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

Dunja Djudjic: from diyphotography.netDunja Djudjic is a multi-talented artist based in Novi Sad, Serbia. With 15 years of experience as a photographer, she specializes in capturing the beauty of nature, travel, and fine art. In addition to her photography, Dunja also expresses her creativity through writing, embroidery, and jewelry making.

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