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The a7R II represents so many significant steps forward that we've been publishing our findings about the camera as a series of in-depth articles, rather than waiting until we'd finished all our testing. These will be summarized in the relevant sections of the review, but are worth delving into, if you're interested in certain aspects of the camera or its performance.
Analysis of Sony a7R II and RX100 IV autofocus
Published July 2nd 2015
We looked at the camera's EyeAF system, its performance and how best to use it as part of our analysis of the autofocus systems of Sony's latest cameras. Click here to read in more detail.
Below you can see how large the a7R II's phase-detection autofocus region is, compared to the positioning of the AF points on the Canon EOS 5D Mk III and the Nikon D810.
Sony a7R II
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Canon EOS 5D Mk III
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Nikon D810
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A more in-depth look at the camera's technology
Published August 17th 2015
Having spent a bit more time with the camera, and some of the engineers who developed it, our Technical Editor Rishi Sanyal looked in a bit more detail at just what's going on inside the a7R II.
A closer look at the Sony Alpha 7R II.
Real-world ISO Invariance
Published Aug 24th 2015
Sony sensors have set new standards in recent years for how little noise they add to the images they shoot and, consequently, offer more dynamic range than we'd previously seen. This opens up a number of new ways of shooting, including shooting at low ISOs in low light, with the aim of protecting highlight data. This is also an effective way of investigating the camera's dynamic range. We used a real-world example to look at what the a7R II is capable of. |
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Click here to read our Real-world ISO Invariance study.
Low-light AF performance
Published July 2nd & August 20th 2015
One of the a7R II's most-discussed features is its ability to autofocus Canon lenses almost as quickly as when used on Canon DSLRs. We looked at how the camera (and its Eye-AF system) performed in good light. Click here to find out more.
But what about low light performance? Can the a7R II still get the shot in very low light. Technical Editor Rishi Sanyal investigates:
Click here to find out more about the test and what it tells us about the camera.
Uncompressed Raw: What difference does it make?
Published September 23rd 2015
When it was first announced, the a7R II could only record Raw files featuring a two-stage compression process that could introduce errors to the files, when you processed them. Sony has subsequently addressed this issue and we had a quick look at the impact of those uncompressed Raw files.
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