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[filmscanners] Re: Scene brightness and CCDs



>Isn't that a curve issue if you say it's only in the mid tones?

Depends on what's in the extremes.  I use wide tonal range to determine where 
to clip black and white points.

With film I'll capture a wide tonal range (using vuescan) then use photoshop 
levels to set black and white points based on where detail is in the specific 
scene and what I'm willing to have clipped (specular highlights, noisy black 
background where shadow detail is unimportant or is distracting).  I may very 
well use curve following this.

I would hope digicam raw files from the higher end equipment would offer this 
capability to some degree.  And for normal (not raw) output one might possibly 
be able to recover some useful extremes if digicam processing was s-curve-like, 
not clipping.

Bob Shomler
www.shomler.com


----------------
>> > How's that that "...result in a photograph
>> > containing virtually no contrast..."?????
>>
>> Using a wide gamut, the midtones are very compressed with respect to the
>> overall range of the image.  When you display this on a device
>> that doesn't
>> have much range compared to the gamut, the midtones will lack contrast.
>> This is easy to see just by playing around with different color spaces in
>> Photoshop.
>
>Isn't that a curve issue if you say it's only in the mid tones?
>
>Austin

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