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Re: filmscanners: Setting screen gamma problem



On Fri, 29 Jun 2001 13:29:41 +1000  Julian Robinson 
(julian@austarmetro.com.au) wrote:

>  Hence my 
> original question -  should such a step wedge look evenly spaced on a 
> well set up monitor?

I've never yet seen one where this really is the case. CRT's just seem to 
be inherently non-linear in the darkest tones, and in a way which isn't 
amenable to simple gamma correction. I know that closed-loop calibration 
(ie with a colorimeter puck) should be able to fix this, but it doesn't 
seem to.

Regards 

Tony Sleep
http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner 
info & comparisons




 




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