ccp900 wrote in post #18525826
Can anyone give me a good short comment on how the a7r3 high iso raw file cleans up when downsampled to 24MP?
looking at 3 areas
1) Noise patterns - the grain and chroma characteristics - do they clean up well?
2) the color reproduction of the raw file - is it accurate or do you see any color shifting at such extreme isos? (talking about 25600 and 51200 isos - downsampling has no effect here but ii wanted to know if there are bad color voodoo happening)
3) much harder to do this last one but how comparable are the images to the a7s/a7s2 in terms of color reproduction and noise characteristics
most of the a7r2 versus a7s2 comparisons say that the images are comparable up to 12800 (there was a B&H video saying same up to 51200) but those look at the grain appearance and not really on other characteristics like color and gradation of light and dark
im really ready to jump on the a7r3 but not ready to give up the high iso advantage i have with the original a7s. If i can get almost the same quality when i downsample to a7s size then i dont need to bring 2 cameras when i go out. quality meaning not only the appearance of noise but also the overall image produced which includes color, saturation and the transitions of the light and dark parts of the image
thanks
Can anyone give me a good short comment on how the a7r3 high iso raw file cleans up when downsampled to 24MP?
looking at 3 areas
1) Noise patterns - the grain and chroma characteristics - do they clean up well?
2) the color reproduction of the raw file - is it accurate or do you see any color shifting at such extreme isos? (talking about 25600 and 51200 isos - downsampling has no effect here but ii wanted to know if there are bad color voodoo happening)
3) much harder to do this last one but how comparable are the images to the a7s/a7s2 in terms of color reproduction and noise characteristics
most of the a7r2 versus a7s2 comparisons say that the images are comparable up to 12800 (there was a B&H video saying same up to 51200) but those look at the grain appearance and not really on other characteristics like color and gradation of light and dark
im really ready to jump on the a7r3 but not ready to give up the high iso advantage i have with the original a7s. If i can get almost the same quality when i downsample to a7s size then i dont need to bring 2 cameras when i go out. quality meaning not only the appearance of noise but also the overall image produced which includes color, saturation and the transitions of the light and dark parts of the image
thanks
I haven't shot with the a7s/s2, but I've always been really impressed with the high ISO color fidelity of the 42mp sony sensor. Of course there's noise as you push the ISO, but it cleans up well. The biggest thing you notice at high ISO is the drop off in DR...so basically you have to make sure you nail the exposure in the camera since you have less head-room in post. But when I get the exposure correct, the files look great.
really old shot, but here is the a7rII at ISO10,000
_DSC8236 by Carlo Alcala, on Flickr12,800:
_DSC5019 by Carlo Alcala, on Flickr25,600:
_DSC0611 by Carlo Alcala, on Flickr
