I decided to see just what 102400 ISO looks like.
I took A7RII with 24-70 F4.0 and walked around the house.
Here is a sequence of processed images from an image shot at ISO 102400, 1/125th, F4.
Here is the full frame image resized to 1024 on the long side.
That's about as big as most images used on websites.
"Grainy" but acceptable.
Here is a 100% crop of the focus point. LOTS of digital grain (noise)
Here is full frame with minimal Lightroom Noise Reduction (25 L, 25 C)
And the 100% crop.
Here is the full frame with probably too much Lightroom Noise Reduction (75 L, 75C)
And the 100% crop.
The heavily NRed image looks manipulated at full frame, even at 1024 pixels.
The minimal NRed is probably what I'd use for an image that is going onto a website or for small print size.
The image without noise reduction looks better than I expected as a full frame in Lightroom on a 21 inch iMAC. The image is about 8x12 inches on the screen and looks surprisingly good for the extreme ISO.
The histogram for the image is not blocked up in the blacks nor clipped in the highlights which helps.
I took A7RII with 24-70 F4.0 and walked around the house.
Here is a sequence of processed images from an image shot at ISO 102400, 1/125th, F4.
Here is the full frame image resized to 1024 on the long side.
That's about as big as most images used on websites.
"Grainy" but acceptable.
Here is a 100% crop of the focus point. LOTS of digital grain (noise)
Here is full frame with minimal Lightroom Noise Reduction (25 L, 25 C)
And the 100% crop.
Here is the full frame with probably too much Lightroom Noise Reduction (75 L, 75C)
And the 100% crop.
The heavily NRed image looks manipulated at full frame, even at 1024 pixels.
The minimal NRed is probably what I'd use for an image that is going onto a website or for small print size.
The image without noise reduction looks better than I expected as a full frame in Lightroom on a 21 inch iMAC. The image is about 8x12 inches on the screen and looks surprisingly good for the extreme ISO.
The histogram for the image is not blocked up in the blacks nor clipped in the highlights which helps.