Originally Posted by ToddB
As a general rule, filters on black and white film will lighten like colors, and darken opposite colors. So a yellow filter will lighten yellow objects, and darken blue objects. Red filter will lighten red objects, and darken green objects. And so on.
Edit - I should have mentioned that exposure matters as well, overexposure will lessen the effect of a filter. The best approach is to use the lightest i.e. least dense filter that does the job.
Last edited by E. von Hoegh; 06-17-2013 at 02:20 PM. Click to view previous post history.