I discovered only the other week that the a7r2 4k full sensor video is also much better than the super 35 video that everyone claims is better, especially at high iso. why it is such a surprise is beyond me, marketing people have done a great job at pulling the wool over everyone's eyes.
Probably for maximizing high ISO noise performance.
"Rules" is a stretch. It's dual gain switch is iso12800, so it gets a slight advantage at that particular iso, but then the difference tapers-off and becomes negligible after that.
It's 12mp to enable 4K30/60/120 without using a stacked sensor. That's the only reason.
Sil, it was for 4K30/60/120 without using a stacked sensor.
Heh! I guess S has to stand for Something!! ; )
Great video, thx for posting it.
Gerald Undone also has a video on different types of pixel binning
To me the colors of the A7sIII look punchier (i.e. the A1 image is a bit more desaturated) and also more natural at the higher ISOs than what you get out of the A1. Most just look at "noise" and (resolution-)"detail", but think this color+desaturation stuff is just the way things are translated. Unfortunately, that has to do with the pixel size, and in less favorable circumstances can kick your rear end pretty hard. In return, most won't need such ISOs, so for them the A1 is the better choice then.
I'm seeing a lot more color issues with the A7siii, look:
The color sampling of 8K from the A1 is only 420 (10bit) while the 4K of the a7s iii can be 422 (10bit). So you do start with les color info.I'm seeing a lot more color issues with the A7siii, look:
You have ugly green patches on the A7siii, and this is minimized on the A1.
Not only that, but Gerald also said the binined 4k has better noise control than the A7siii.
The colors are better because when you pixel bin 8k => 4k, you get more color information per pixel than if you just do 4k, because of the Bayer filter.
This is not correct. 8K 4:2:0 can be transcoded to 4K 4:2:2 or even 4:4:4,The color sampling of 8K from the A1 is only 420 (10bit) while the 4K of the a7s iii can be 422 (10bit). So you do start with les color info.I'm seeing a lot more color issues with the A7siii, look:
You have ugly green patches on the A7siii, and this is minimized on the A1.
Not only that, but Gerald also said the binined 4k has better noise control than the A7siii.
The colors are better because when you pixel bin 8k => 4k, you get more color information per pixel than if you just do 4k, because of the Bayer filter.
This is all beside the original point, which has already been covered and verified.
^ 100% correct.This is not correct. 8K 4:2:0 can be transcoded to 4K 4:2:2 or even 4:4:4,The color sampling of 8K from the A1 is only 420 (10bit) while the 4K of the a7s iii can be 422 (10bit). So you do start with les color info.I'm seeing a lot more color issues with the A7siii, look:
You have ugly green patches on the A7siii, and this is minimized on the A1.
Not only that, but Gerald also said the binined 4k has better noise control than the A7siii.
The colors are better because when you pixel bin 8k => 4k, you get more color information per pixel than if you just do 4k, because of the Bayer filter.
A lot of that has to do with misinformation by Sony in the past (calling line skipping “binning”) and the whole video/photo industry calling a sensor/camera 12, 24, 42, 45, 50, 61 or 100 Mpixels when much of the actual color data of these pixels is missing.^ 100% correct.This is not correct. 8K 4:2:0 can be transcoded to 4K 4:2:2 or even 4:4:4,The color sampling of 8K from the A1 is only 420 (10bit) while the 4K of the a7s iii can be 422 (10bit). So you do start with les color info.I'm seeing a lot more color issues with the A7siii, look:
You have ugly green patches on the A7siii, and this is minimized on the A1.
Not only that, but Gerald also said the binined 4k has better noise control than the A7siii.
The colors are better because when you pixel bin 8k => 4k, you get more color information per pixel than if you just do 4k, because of the Bayer filter.
This is kind of like the original topic here, where people comparing camera A to camera B see one factor (binning vs full sensor readout) and make incorrect statements or assumptions because they're ignoring the fact that camera A has 4x the resolution.
What I said is not incorrect. The 8K is 420 when shot. I did not say what happens when you downsample it.This is not correct. 8K 4:2:0 can be transcoded to 4K 4:2:2 or even 4:4:4,The color sampling of 8K from the A1 is only 420 (10bit) while the 4K of the a7s iii can be 422 (10bit). So you do start with les color info.I'm seeing a lot more color issues with the A7siii, look:
You have ugly green patches on the A7siii, and this is minimized on the A1.
Not only that, but Gerald also said the binined 4k has better noise control than the A7siii.
The colors are better because when you pixel bin 8k => 4k, you get more color information per pixel than if you just do 4k, because of the Bayer filter.
Yes, downsampling does that. What is incorrect is the statement that the 8K is not 420. It is. Nothing was ignored, the 8K sampling spec is 420. The 4K sampling is 422. Sure, downsample 4K and it can be 444. So what? And, yes, I do not like what I say as being labeled incorrect when it is not.^ 100% correct.This is not correct. 8K 4:2:0 can be transcoded to 4K 4:2:2 or even 4:4:4,The color sampling of 8K from the A1 is only 420 (10bit) while the 4K of the a7s iii can be 422 (10bit). So you do start with les color info.I'm seeing a lot more color issues with the A7siii, look:
You have ugly green patches on the A7siii, and this is minimized on the A1.
Not only that, but Gerald also said the binined 4k has better noise control than the A7siii.
The colors are better because when you pixel bin 8k => 4k, you get more color information per pixel than if you just do 4k, because of the Bayer filter.
This is kind of like the original topic here, where people comparing camera A to camera B see one factor (binning vs full sensor readout) and make incorrect statements or assumptions because they're ignoring the fact that camera A has 4x the resolution.
