Digital BW, The Print

Absolutely correct.  Sorry, I got my numbers backwards.  In truth,  
the "zones" I delineated are more of an abstraction, as Ken  
mentioned.  Whether the actual dynamic range were 5 zones or 13, in  
the end it depends on the contrast settings as well as the in camera  
conversions or post camera processing as to how those values will be  
distributed in the final saved image.

I hope I didn't confuse anyone.

Eric
www.ericashworth.net


On Aug 19, 2005, at 10:43 AM, Hal Gage wrote:

> I think that you have your zones reversed. In photosensitometry (and
> Adams' application of it), zone 1 represents mostly film base fog
> (nearly no exposure) thus, deepest shadow, or in your "12 bit"  
> example,
> 1 level of gray.
>
> Thanks for sharing your analysis. It's what I have read, too other  
> than
> the above.
>
> Hal Gage