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RE: filmscanners: pushing dynamic range on the nikon 4000ed

At 12:52 AM +0000 11/26/01, Jawed Ashraf wrote:
>>  o By the way, a cool trick for comparing a scan displayed on the
>>  screen to the original slide is to open an empty window with a white
>>  background and hold the slide up to it, using the monitor as a light
>>  table that is perfectly matched in color temperature, spectral
>  > distribution and intensity to...your monitor.
>It occurred to me this week that this is not the right thing to do (I was
>looking at some slide-scanning samples I've published on the web and
>thinking about their colour).  Because slides are designed to be viewed
>using lighting of 5000-5500K (as far as I can tell).

BF: This trick should work at all color temperatures because your 
eyes adapt.  The key is that to compare a slide (or print) to a 
monitor the viewing illumination must have the same color temperature 
and intensity as the screen.  For slides you can use the screen 
itself as an illuminator.

>Anyhow, if you have a Mac, your system is probably calibrated around 5000K,
>as far as I understand it.  So the "slide against the screen" trick should
>be more truthful.

BF: At the time I wrote that my monitor was calibrated with 
ColorVision's Monitor Spyder and PhotoCal to 6500K at gamma 2.2.

Bill Fernandez  *  User Interface Architect  *  Bill Fernandez Design

(505) 346-3080  *  bill_sub@billfernandez.com  *  http://billfernandez.com


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