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ISO Speed and Image Noise

The following pictures show the relationship between high ISO values and low picture quality. Also the differences between cameras can be seen.

All pictures are 100% crops. Pictures taken in RAW are shown both before and after USM sharpening (Photoshop UnSharpMask filter with options 100%/1px/0).

5D
RAW
300D
RAW
IXUS500
JPEG
5D
RAW + USM
300D
RAW + USM
ISO
50
jpg - jpg jpg -
ISO
100
jpg jpg jpg jpg jpg
ISO
200
jpg jpg jpg jpg jpg
ISO
400
jpg jpg jpg jpg jpg
ISO
800
jpg jpg - jpg jpg
ISO
1600
jpg jpg - jpg jpg
ISO
3200
jpg - - jpg -

 

© Erkki Vanninen