In message < >,
(Mike Henley) wrote:
>Can you get similar results from post-processing TIFF to those you'd
>get from PPing RAW?
16-bit TIFF will posterize the levels in the highlights. This is not
visible immediately, but may become visible with some processing.
8-bit TIFF will posterize the highlights much more than 16-bit, and will
posterize the midtones and brighter shadows as well.
>And what about JPEG?
JPEG has the same issues as 8-bit TIFF, plus the issues of compression
artifacts, which may be exaggerated after some processing, even if
compression is low.
As luck would have it, programs don't work with the RAW data directly,
so you usually have to settle for a 16-bit TIFF or PSD format if you
want to save your work for optimum future editing.
--
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John P Sheehy <>
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