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Subject: Re: Faux RAW Hoorah



The displayed "smooth" histogram for an image that has been converted 8->16bit, must be misleading. That is, if you convert from 256 levels to a format that is capable of holding 64k levels, you still have only 256 levels. All subsequent tonal operations may be precise, but when you convert back to 8bits, round-off errors will result pretty much in the same 8bit levels that would have been the result of 8bit operations all along.

Of course, for resulting prints, especially for tonal operations that weren't drastic, it's pracically impossible to see any difference. "16bit" workflows are debatable, but IMHO it comes under the heading of "good technique". However, I do understand your issue of finite camera memory :)

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