Re: [APML] "daylight" balanced lighting

[Jerry Lodriguss <jml@astropix.com>]

>Anyway, I need to standardize on a viewing lighting.
>I know there are "daylight" balanced florescent
>lights...something like 5000K. Is there a standard
>accepted lighting type for viewing and judging
>photographic prints? Are the bulbs florescent or
>incandescent?


There are definitely standards, one is set by the American Society for 
Testing and Materials (ASTM): "D 1729 Standard Practice for Visual 
Evaluation of Color Differences of Opaque Materials".  Another is ISO 3664 
by the International Standards Organization.

Not that they are going to do you any good, unfortunately, because of 
metamerism. The prints from your two printers might match under standard 
viewing illumination and still not match under other lighting conditions 
encountered in the real world.

This page is about the Epson 1200, but you'll get the idea:

http://www.tssphoto.com/sp/dg/2000p/metamerism.html

Also, take a look at:

http://www.creativepro.com/story/feature/5475.html

Trying to get inexpensive proofs from a different device to match the final 
printing device has been the holy grail for printers and publishers for 
many many years.

Good luck.

Jerry








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