Sonz A7R II ISO 100 to 102400

A7R II Review – 07 – ISO Performance

Here is an ISO performance test with the A7R II. I have shot everything in RAW and exported the files as JPG without altering them in any way. They have been shot from ISO 100 to 102400 using the Sony/Zeiss 55mm 1.8 at f13.

ISO 100

ISO 100

ISO 200

ISO 200

ISO 400

ISO 400

ISO 800

ISO 800

ISO 1600

ISO 1600

ISO 3200

ISO 3200

ISO 6400

ISO 6400

ISO 12800

ISO 12800

ISO 25600

ISO 25600

ISO 51200

ISO 51200

ISO 102400

ISO 102400

The ISO performance is as always at Sony’s high standards. You still have to consider that the sensor’s density has gone up a notch yet again. At high ISOs the images start getting a very fine grain which I know that many photographers like. I must say that I also prefer that to getting that sort of mushiness you can normally see at ISOs.

A7 VS A7R II – ISO PERFORMANCE

Even though the A7R II has a higher MP count, it still wins in ISO performance. The latest A7 iteration generates less color noise, is cleaner and has more detail. And as there’s also a pixel density difference between the 2 sensors, you could always scale it down for seeing an even better performance on the A7R2. The latest Sony sensor has a remarkable efficiency. Also, I noticed this on several occasions, the A7M2 exposes a little brighter than the A7 (but uses a slower shutter speed – probably as it’s counting on IBIS in aperture priority).

Better ISO performance - A7 vs A7R II

Better ISO performance – A7 vs A7R II

ISO 6400. Left A7RII. Right A7. The A7R II generates less noise and has more detail.

ISO 6400. Left A7RII. Right A7. The A7R II generates less noise and has more detail.

Edit: I found out, again and again that the A7R II, compared to the A7, uses 2 thirds of a stop slower shutter speeds. But it seems that the image is indeed brighter, but not 2 thirds. More like 1 third. I think there’s a little bit of cheating going on.

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