Miserere <[email protected]> wrote:

>When I first started using Photoshop in 2005 I took one of my photos
>with plenty of detail and colours and saved it as a JPEG in all
>quality settings up to 12. I then pixel-peeped the hell out of them
>and came to the conclusion that the differences between 10 and 12 were
>as good as invisible but the file sizes were VERY different. The
>difference between 8 and 10 was small, but visible to me at 100%. That
>was the last time (and first) I performed this test and since then
>have saved JPEGs at quality level 9 or 10, and sleept soundly at
>night.

Except that quality setting 6 gives you *larger* (& poorer quality)
files than setting 7. No kidding.

http://www.petapixel.com/2011/08/26/a-higher-quality-setting-in-photoshop-sometimes-reduces-jpeg-quality/


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