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DxOMark Camera Sensor Benchmark Explained

DxOMark Camera Sensor Benchmark Explained | Photography Gear News | Scoop.it
DxOMark Camera Sensor is a raw benchmark for camera bodies by DxO Labs. The benchmark is “raw” because it measures image quality using Raw output files. It is also raw as DxO’s data can be used to cook up camera reviews that cover more aspects than image quality.

If you only want to compare a few specific cameras, the original data on DxOMark’s website should be perfectly adequate – although I still suggest browsing all the pictures in this article. However, if you want a deeper understanding of what the DxOMark scores really mean, if you care about tradeoffs in camera design or are wondering about major industry trends like “mirrorless” and small high quality cameras, this article might be of some use.

This article hopes to bridge the gap between scientific publications about camera sensor design (which are quite inaccessible for photographers) and consumer-oriented camera reviews. I have tried to maintain some degree of readability by including lots of diagrams, by mentioning examples, by moving details to endnotes and by adding some actual sample photos.
Philippe Gassmann's insight:

Amazing article about the metrics used by DxOMark

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Canon introduces EF 400mm f/4 DO IS II USM, EF 24-105mm and EF-S 24mm f/2.8 lenses: Digital Photography Review

Canon introduces EF 400mm f/4 DO IS II USM, EF 24-105mm and EF-S 24mm f/2.8 lenses: Digital Photography Review | Photography Gear News | Scoop.it

In addition to its compact camera and EOS 7D Mark II launch at Photokina, Canon unveils three new lenses. The EF 400mm f/4 DO IS II USM, EF 24-105mm f/3.5-5.6 IS STM and EF-S 24mm f/2.8 STM announced today target different types of photographers. The EF 400mm f/4 II weighs half of what its EF 400mm f/2.8L counterpart does, and claims four additional stops of shutter speed thanks to Canon's optical image stabilization.  

The EF 24-105mm f/3.5-5.6 IS STM also claims four additional stops of shutter speed, and provides full-frame Canon shooters with a cheaper alternative to the 24-105mm f/4L. Canon calls the EF-S 24mm f/2.8 the slimmest and lightest EF-S lens the company has ever produced. Like the 24-105mm f/3.5-5.6 it includes a stepping motor for quiet autofocus performance. 

The EF 400mm f/4 DO IS II USM will be available in November for $6899. Also available in November, the EF-S 24mm f/2.8 STM will cost $149.99. The EF 24-105mm f/3.5-5.6 IS STM will be available in December for $599.99. 

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The wait is over: Canon EOS 7D Mark II First Impressions Review

The wait is over: Canon EOS 7D Mark II First Impressions Review | Photography Gear News | Scoop.it

Enthusiast photographers have been waiting in agony for a replacement to the Canon EOS 7D for five years. Their wishes have finally been granted - and in a big way - with the arrival of the EOS 7D Mark II. With a new sensor, improved AF system, faster image processor, and Full HD video, we think that it was worth the wait. For a lot more on the 7D II, read our detailed First Impressions Review.


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Mike Croshaw Photos's curator insight, September 16, 5:26 AM

If I was into wildlife or sports photography this would be very tempting.

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Otus 1.4/85 - ZEISS's new Flagship sailing from Imaginary to the Real World

Otus 1.4/85 - ZEISS's new Flagship sailing from Imaginary to the Real World | Photography Gear News | Scoop.it
Comparison review model shooting, Zeiss Apo Planar T* Otus 85mm, f/1.4, on Sony A7R, Nikon, Nikkor
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Polished to a T: Fujifilm X100T Overview

Polished to a T: Fujifilm X100T Overview | Photography Gear News | Scoop.it

If there's one thing you can say about Fujifilm, it's that the company has shown a desire to continuously improve its cameras. In the case of the X100T, Fujifilm has taken the already refined X100S and redesigned the viewfinder, added more exposure controls, and included an electronic shutter. We've spent some time with an early production X100T and have put together an overview that covers the key points.

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GoPro points to increased costs as it reports deeper losses in financial results: Digital Photography Review

GoPro points to increased costs as it reports deeper losses in financial results: Digital Photography Review | Photography Gear News | Scoop.it

Despite the ubiquity of GoPro's diminutive 'action cam' video cameras, the company has reported a loss of $19.8 million for the second quarter following an additional loss of $5.1 million from the year prior. GoPro first went public in June of this year, and while shares have dropped a whopping 11-15% following the financial results, everything is not necessarily doom and gloom for the company.

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Why It Sucks To Be A Mid-Level Wedding Photographer

Why It Sucks To Be A Mid-Level Wedding Photographer | Photography Gear News | Scoop.it
Most photographers have been there at some point in their career – wedding photography. Some of us move on to other things, like commercial photography.  Some actually enjoy wedding photography and make a career out of it.
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From DSLR to mirrorless… and back again

From DSLR to mirrorless… and back again | Photography Gear News | Scoop.it

"When I decided to try out a mirrorless camera I broke my two golden rules of selecting a camera. That was a big mistake, and as a result I'm now going back to a DSLR for a while, but oddly the reasons have little to do with mirrorless technology per se.

In fact after two months with a mirrorless camera I'm more than ever convinced that mirrorless is the future, the big issue for me is when that future begins.

But let's get back to the present, and my two golden rules."

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Apple Aperture is Officially Dead

Apple Aperture is Officially Dead | Photography Gear News | Scoop.it
Today is another sad day, because Apple announced that it will no longer continue development of its Aperture software, which many photographers still rely on for their day to day photo management and editing.
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Brad Tollefson's curator insight, July 2, 8:23 PM

Crap- LightRoom bound?

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Sony’s a7S Tested in the Middle of the Night, Yielding Impressive Results

Sony’s a7S Tested in the Middle of the Night, Yielding Impressive Results | Photography Gear News | Scoop.it
With the sensitivity of the Sony a7S reaching up to an ISO of 409600, the camera itself has had some pretty high expectations to live up to.
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LensRentals.com - The Glass in the Path: Sensor Stacks and Adapted Lenses

LensRentals.com - The Glass in the Path: Sensor Stacks and Adapted Lenses | Photography Gear News | Scoop.it

NOTE: This is a Geek Post. If you aren’t into geeky photo measurements, or into adapting lenses from one brand of camera to another, you’ll not be interested. 


A year or two ago, I wrote a blog post where I basically showed lenses shot on adapters on other cameras aren’t acceptable for testing. If you run them through Imatest the results aren’t accurate. I suggested that reviewers shouldn’t test lenses on adapters, although obviously adapters are a great way to use interesting lenses to take pictures.


More recently, in online discussions about why certain lenses weren’t working well on certain cameras, I brought up the fact that sensor stacks, the various layers of glass in front of the sensor containing AA filters, IR filters, etc. would be contributing to this problem; that there was more to it than just adapter irregularities. Most people thought that really wasn’t having an effect, though, so I forgot about it.


Yesterday I got a dramatic rude awakening that made me return to this train of thought and do some investigation. The way it happened was simple enough. Dr. Brian Caldwell, the guy who designed the Coastal Optics 60mm Macro, the Metabones Speedboosters focal reducers, and a lot of other cool lenses came to visit.  I’ve had the pleasure of knowing Brian for some time, but I will have to admit his visits (like those of several others) have become just a bit more frequent since we got our MTF bench up and running.


Brian had brought a prototype of his latest focal reducer. He told me it was so good that it clearly improved the MTF of full-frame lenses while increasing their aperture when mounting them to m4/3 cameras. He also brought the computer generated MTF graphs showing what it should do, which was pretty spectacular...

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Paul Trillo and Microsoft link 50 Lumia 1020s to create bullet effect

Paul Trillo and Microsoft link 50 Lumia 1020s to create bullet effect | Photography Gear News | Scoop.it

Filmmaker Paul Trillo and Microsoft, who previously collaborated on the NY 41x41 project, have teamed up again to work on another smartphone-based visual project. Trillo and his team built  an apparatus which they call the "Lumia Arc of Wonder". It consists of 50 Nokia Lumia 1020 smartphones fixed to a custom-built metal arc on casters, some networking equipment and external power sources. 


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Fujinon XF 23mm f/1.4 R (Fujifilm) - Review / Test Report

Fujinon XF 23mm f/1.4 R (Fujifilm) - Review / Test Report | Photography Gear News | Scoop.it

Fujifilm is on a mission. Their product release pace is like no other in the industry at the moment and rather than providing endless iterations of nearly identical low-cost kit lenses, they are busy adding high quality and high priced lenses to their system. This certainly helped to gain quite a reputation among enthusiasts as well as professionals. The new Fujinon XF 23mm f/1.4 R is another cornerstone in the already extensive list of prime lenses (for such a relatively new system). The Fujinon is obviously an ultra-fast, moderate wide-angle lens with a field of view equivalent to about "35mm" on full format cameras. Such lenses are especially popular among street photographers for instances.


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Moon Camera for Sale (The Pictures are Free)

Moon Camera for Sale (The Pictures are Free) | Photography Gear News | Scoop.it
The machines that made the Apollo program a success were, on the whole, huge. The Saturn V rocket rocket stood 363 ft. (111 m) tall. The scaffold-like gantry that serviced it measured nearly 400 ft. (122 m).
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Olympus Open Platform Prototype Camera At Photokina 2014

Olympus Open Platform Prototype Camera At Photokina 2014 | Photography Gear News | Scoop.it
Olympus are showing a new prototype interchangeable lens camera module designed to connect to smartphones and tablets.
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Nikon D750 High Resolution Image Samples

Nikon D750 High Resolution Image Samples | Photography Gear News | Scoop.it
If you would like to see what the Nikon D750 is capable of in terms of image quality at different ISO levels, check out some of the image samples below. These were gathered from different Nikon websites and unfortunately, not all of them have full EXIF information. The ones that do will show underneath each …
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Special FX: Nikon D750 First impressions review

Special FX: Nikon D750 First impressions review | Photography Gear News | Scoop.it

The D750 is Nikon's latest FX format camera, which borrows features from the D810 and marries them with a 24MP sensor, offering a faster frame-rate than any non-professional full-frame Nikon DSLR since the D700. Aimed squarely at enthusiasts and full-frame upgraders the D750 boasts a comprehensive video and still photography specification which includes a tilting rear LCD screen and (on paper) an improved version of the 51-point AF system found in the D810. We've been using a pre-production camera for a few days - click through for our first impressions. 

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Philippe Gassmann's curator insight, September 12, 1:26 AM

I don't agree with the conclusion of dpreview, this camera seems really to be the continuation of the D6x0 line. Nikon decided to remove their bad reputation camera line and replace it with this new line...

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35mm or 50mm: Deciding On Your First Prime

35mm or 50mm: Deciding On Your First Prime | Photography Gear News | Scoop.it

In one of those rare more-informative-than-funny Top Gear DigitalRev episodes, Kai tries to help beginners decide what they should buy for their first prime: a nifty 50mm, or a more versatile 35mm.


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MIT photography course materials freely available online

MIT photography course materials freely available online | Photography Gear News | Scoop.it

Independent learners and photo course leaders are invited to take advantage of a range of educational materials prepared by professors at the Massachusetts Institute of Technology. Via the institute’s Open Course Ware (OCW) program, selected reference materials, syllabus structure and lesson plan guidance is published and free to download so that motivated individuals can teach themselves.

Currently materials from twelve courses are available to the public, including ‘Photography and Truth’, ‘Documentary Photography and Photojournalism: Still Images of a World in Motion’, 'Sensing Place: Photography as Inquiry and Introduction to Photography'.

Two further courses, ‘Strobe Project Laboratory’ and ‘Computational Camera and Photography’ have been prepared and will be added to the list shortly.

Luke Freedman Phelan, a department liaison for OCW, told DPReview "MIT launched OCW in 2002, and since that time we have published material from over 2200 MIT courses. All our content is freely accessible and made available under a Creative Commons license. We average close to 3 million unique visitors per month. OCW is a publisher of course materials, but you cannot receive credit, a degree, or certificate upon completion of OCW materials. Similarly, OCW has no registration or enrollment option, and we do not provide interaction or direct contact with MIT faculty, staff, or students."

The amount of material made available for each course varies, but most include reading lists, lesson guidance, assignments and projects, as well as an explanation of what students should hope to achieve by doing the course. Others include exam questions, video lectures and galleries of images taken by students who completed the course at MIT.

To see the list of photography courses go to the course selection page.

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Fujifilm updates X-mount lens roadmap through end of 2015

Fujifilm updates X-mount lens roadmap through end of 2015 | Photography Gear News | Scoop.it
Fujifilm has updated the roadmap for its X-mount lenses up to the end of 2015. One extra lens has been added, while a second lens previously included has been formally named. The release order of three others has changed.
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Opinion: Why Small Changes Make a Big Difference to Nikon's D810

Opinion: Why Small Changes Make a Big Difference to Nikon's D810 | Photography Gear News | Scoop.it
The Nikon D810 might seem like an incremental update to the older D800 and D800E but under the hood there are some significant new features.
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The Dangers Of Urbex – Photographer Could Be Facing A Year In Jail And A 15,000 Euro Fine

The Dangers Of Urbex – Photographer Could Be Facing A Year In Jail And A 15,000 Euro Fine | Photography Gear News | Scoop.it
While Urban exploring (also referred to as Urbex) provides both wonderful photos for the viewers and a thrill for the photographer is it not always fun and games.
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How to Convert Lenses to Tilt Shift Macro Lenses With 3D Printing

How to Convert Lenses to Tilt Shift Macro Lenses With 3D Printing | Photography Gear News | Scoop.it
At about $1500 real tilt-shift lenses are not cheap. (Long time readers will appreciate the correct spelling :). Instructable user Cpt.Insano created a 3D printed adapter that converts practically and Nikon lens into a tilt shift lens.
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James Johnston's curator insight, July 28, 1:55 PM

Cool #DIY project. Might have to try this on an old lens from ebay. 

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Why mobile photography is completely broken - TechGeek

Why mobile photography is completely broken - TechGeek | Photography Gear News | Scoop.it
I think there’s something fundamentally broken about how we work with mobile photographs today. Take a look at how a large majority of people might deal with photographs on a smartphone.

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Cheesycam DIY Video Tripod Platform Push Dolly Project » CheesyCam

Cheesycam DIY Video Tripod Platform Push Dolly Project » CheesyCam | Photography Gear News | Scoop.it

If you’re not familiar with the history behind the website name, it’s derived from many of the ‘cheesy’ ideas and DIY projects that I’ve built and shared through this website. So here’s another ‘cheesy’ project i’ve been tinkering with, and I thought i’d share where i’m at with it.


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Camera fans fooled yet again by April Fools’ Day pranks

Camera fans fooled yet again by April Fools’ Day pranks | Photography Gear News | Scoop.it
  Image: Photo Rumors April Fools’ Day is extra-hilarious for anybody who follows camera and photography news. Our little category has a healthy rumor mill, fueled by thousands of dedicated fanboys, many of whom are good with Photoshop,…

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