Sony Alpha a7R III vs a7R II Comparison Review

Sony have just announced the latest full frame mirrorless camera in their Alpha a7 range – the high resolution Sony a7R III. This latest version brings a number of key advancements over its predecessor, the a7R II.

In this review we’re looking at what those changes are from the Sony a7R II to the latest a7R III, we’ll run through what’s changed, what’s new, and what’s stayed the same so you can make an informed choice when you buy one of these outstanding mirrorless cameras.


The Sony Alpha a7R III features the same 42.4 effective megapixel back-illuminated EXMOR R CMOS sensor that was found in the a7R II.

However, the high resolution sensor is powered by a BIONZ X image processing engine and the latest front-end LSI. This combination delivers two times faster sensor readout from the sensor and 1.8 times faster image processing. This has led to improved ISO performance with a standard ISO range now up to 32,000 and expandable to ISO 50-102,400.

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