Hi, Can anyone explain why I get noise in the second image please. I've noticed this happening on a lot of my photos lately. Both taken with the following settings; ISO250, f4.5, and 70mm focal lenth. The first image was 1/250 sec and the second image was 1/640 sec. I have another shot the same as the second taken at 1/125 sec with just as much noise. Both shot in RAW. If anybody could shed some light on the cause it would be much appreciated! Cheers, A.