Richard from Rotterdam wrote:@ Iwan: as an aside to this topic: I see you shoot quite a lot on ISO 400. Do you see any difference between 200 and 400 in favorably (sunny) light conditions?
Hi Richard,
I don't see any difference between ISO 200 and ISO 400. Actually I dare to shoot at ISO 800 without hesitation.
One year ago, when I just bought the EOS-1D Mark IV I did a ISO-noise test myself. The result can be seen below. Depending on the use of my shots I feel I can go all the way up to ISO 3200 without getting into troubles. With a 4896 x 3264 resolution the noise at ISO 3200 still doen't affect my photos when reduced to screen size, and for larger prints it can still be overcome with Noise Ninja / Lightroom.
Here are the results of the ISO-noise test, taken at night along the A28. The first GIF is the full size image reduced to 900 x 600, the second is a 900 x 600 crop of 100% photo (e.g. 1 pixel from the camera is 1 pixel on your screen).
Hope this helps,
Iwan