Below you’ll see photographs taken with the Canon R5 mirrorless and the 100-500mm lens with the 1.4x attached. That’s 700mm hand-held.
I thought it would be interesting to photographed at different ISO settings.
The above photos at ISO 3200 are perfectly acceptable. The first photo is cropped to 100%. The second image is enlarged to show detail. Probably enlarged to 200%+.
Above is an image from the same session. The first photo is enlarged to 100% and shot at ISO 5000. The second is highly enlarged to show the grain and quality.
I decided to really push the R5. I raised the ISO to 32,000. The first photo is cropped to 100%. The second photo is enlarged even more to show the grain.
At ISO 32,000 we finally start to see unacceptable grain. Still nice but grain is obvious.
All photos have been processed in Adobe Camera Raw. I used a bit of Noise Reduction. The slider was moved to 25 in the first two images and 50 in the last image.
What do you think?