The Sony a7RIII and a7RII Explored by The Last Word


The Last Word is an excellent resource for technical camera measurements and Jim has been picking apart various aspects of the Sony a7RIII lately along with the a7RII. If you’re interested in technical analysis there is no better free site on the web today to get into the technical side of how cameras work. Jim’s testing has even lead to a workaround for star eater for the Sony a7RII, but it doesn’t work for the a7RIII, which is probably due to the camera having enough processing power to still do spacial filtering in burst mode.

I normally include these kinds of posts in round-ups, but Jim has turned out so much useful information that I think I will make The Last Word into a semi-regular post with the newest stuff indicated somehow. He has been dissecting all the of the latest and greatest cameras on the market along with anyone willing to help. This level of analysis isn’t for everyone, but it can be very helpful when trying to get the most from your camera.

Sony Pixel Shift
Sony a7RIII pixel shift
Sony a7RIII pixel shift red sharpness
Sony a7RIII pixel shift real world false colors and dynamic range

Sony a7RIII Star Eater
Sony a7RIII eats stars
A visual look at a7RIII star-eating
Sony a7RII and a7RIII star-eating under the microscope
Star-eating test methods
a7RII star-eating histograms
a7RIII star-eater green channel histograms
Testing for a7RIII star-eating by direct search
a7RIII star spreading
Sony a7RIII star spreading — raw composites
Sony a7RIII raw spatial processing
a7RIII star-eater questions answered
Sony a7RII star-eater workaround

Electronic Shutter
How fast is the Sony a7RIII silent shutter?

Know your RAW: 14-bit, 13-bit, and 12-bit RAW (Compressed vs Uncompressed)
Sony a7RIII precision
Sony a7RIII photon transfer curves

Dynamic Range and ISO Explained
Sony a7RIII EDR vs ISO setting
a7RIII vs a7RII low-ISO EDR

Long Exposure
Sony a7RIII read noise vs exposure time
Sony a7RII long exposure battery current draw

Hands-on
Shooting an event with the a7RIII
Another event with the a7RIII

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Sony a7RIII: B&H Photo / Amazon / Adorama

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