9 May
2007
9 May
'07
4:43 p.m.
Chuck, Okay, here's the short rule-of-thumb for colored filters that I was looking for: "What you see is that a filter lightens tones of objects colored similarly to the filter and darkens tones of objects colored dissimilarly." Kodak. 1998. Using Filters (Kodak Workshop Series) (The Kodak Workshop Series) (Paperback). So, a red filter on Mars lightens the reds and darkens the blue polar ice caps and the blue-green maria. - Kurt _______________________________________________ Sent via CSolutions - http://www.csolutions.net