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Steve Spencer
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Re: Sony A7RVI


arbitrage wrote:
I'm still catching up on all the YT reviews. But so far both Jan and Duade have said they didn't find many rolling shutter problems while testing the camera. Jan said it was better than the A7V.

I think the readout speed is going to be faster than we think when in Compressed RAW AF-C. Of course it does depend on size of subject in the frame that they were mostly shooting.


We will see when testing is done. I am skeptical of early YT reviews even from reputable people when they are based on impression and not actual testing. It generally takes awhile to know the limits of a camera. The camera in uncompressed RAW is a little slower than the A7 V, but should gain more in compressed RAW as the files are bigger and likely will gain a bit more speed when compressed. I am guessing (and it is just a guess) that they will be similar in compressed RAW. We will know before too long.

Steve Perry tested the Nikon Z6 III and it goes from 14.4 ms in 14-bit mode to 11.0 ms in 12-bit mode. I am guessing that the A7 V and A7r VI will both come in close to that 11ms or maybe even 10 ms in lossy compressed RAW, but again we will know before too long.

And for those who chatised Alex Phan for providing a number of 5-10ms, do realize that there isn't just one number. He was giving a range and that is appropriate given that the number does depend on a number of factors. That might well end up being the range with 5ms being close to the number in lossy compressed RAW in APS-C mode and 10ms being the number in lossy compressed RAW using the whole frame. I think it would have been better to describe the range as 5ms to 20ms if that is correct, but still the numbers he gave might not be far off from what the camera will provide in the way most people would use it for wildlife photograpy.

Neither does that mean that it really is in the same class as the A1/A1 II. That camera using similar numbers taking into account both lossy compressed RAW and using a smaller part of the sensor is more like 2-3ms and that could and likely will be quite meaningful to some people in comparison to 5-10ms if that is what the A7r VI ends up being.



May 14, 2026 at 08:43 AM
Steve Spencer
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Upload & Sell: On
Re: Sony A7RVI


arbitrage wrote:
I'm still catching up on all the YT reviews. But so far both Jan and Duade have said they didn't find many rolling shutter problems while testing the camera. Jan said it was better than the A7V.

I think the readout speed is going to be faster than we think when in Compressed RAW AF-C. Of course it does depend on size of subject in the frame that they were mostly shooting.


We will see when testing is done. I am skeptical of early YT reviews even from reputable people when they are based on impression and not actual testing. It generally takes awhile to know the limits of a camera. The camera in uncompressed RAW is a little slower than the A7 V, but should gain more in compressed RAW as the files are bigger and likely will gain a bit more speed when compressed. I am guessing (and it is just a guess) that they will be similar in compressed RAW. We will know before too long.

Steve Perry tested the Nikon Z6 III and it goes from 14.4 ms in 14-bit mode to 11.0 ms in 12-bit mode. I am guessing that the A7 V and A7r VI will both come in close to that 11ms or maybe even 10 ms in lossy compressed RAW, but again we will know before too long.



May 14, 2026 at 08:35 AM





  Previous versions of Steve Spencer's message #17038322 « Sony A7RVI »