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Digital BW, The Print

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RE: [Digital BW] 16 X 8 bits editing

2002-03-21 by Austin Franklin

> I was always interested in this subject. Done some tests,and never really
> saw a difference.

Hi Andre,

That depends on what you are doing.  The things that matter in 16 bit mode
are things that change the tonal curves.  If you are performing operations
that don't do anything to the tonal curve, then high bit mode won't help.
It also depends on how large your tonal moves are, and what the image is.
Some images are very sensitive to it, and some aren't.

> Then I recently read a post from Dan Margulis in another
> group I participate,who says it really makes very little
> difference,if any.

Dan is specifically talking about color, for which he is right.  That is
easily explainable too.  Color is 3 x 8 or 24 bits/pixel, where B&W is 8
bits/pixel.  His comment is absolutely NOT true for B&W.

> He certainly knows more about it then anyone of us,

Well, no, not necessarily.  He writes more about it, that's for sure.

> It's more a theoretical issue than a practical one.

Well, for B&W, it is a real issue.  It really depends on your images, and
your ability to critique output too.  Some people don't notice subtle tonal
posterizing, while some do.  It is a learned perception, BTW.

Regards,

Austin

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