Re: fine art reproduction questions
Re: fine art reproduction questions
- Subject: Re: fine art reproduction questions
- From: neil snape <email@hidden>
- Date: Sun, 02 May 2010 14:35:02 +0200
- Thread-topic: fine art reproduction questions
on 2/05/10 13:33, Matthew Ward wrote :
> It is possible to get a flat (linear) response out of a camera by
> using Dave Coffin's DCRAW processor.
> If the luminance range of the art work does not exceed the luminance
> range of the camera, the only advantage to using HDR approach that I
> can think of would be to capture the shadow detail at a higher bit
> depth to reduce noise.
No idea, why don't you look on the Dcraw site.
HDR is a multiple shoot technique where you are moving the captor's ability
to put the levels in their best range.
No digital capture can have perfect response at either end of the scale
without noise and or other artefacts.
If you think that the response if fine even with a linear TRC used in
developing will make up for this , you will have to look closer at your
images. The OP is using a Canon 5DII which has less than ideal shadow and
shadow transitions.
The idea is you move the shadows into an exposure that has better response
and less noise. That is the advantage of making multiple exposures and using
the best parts of them when NEEDED.
This is also one reasons why multi shoot MF backs make better stills or
copy files by reducing noise.
The DR of the original art work is one part of the equation, the captor and
software the larger part of the file created. DSLRs are less than perfect,
at doing this.
Again if you are happy with your results so be it.
Neil Snape
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