Jason and Rick answer listener mail to give their thoughts on filters. Learn what types of filters are best for film and digital SLRs, when to use them, and why. Then the "doctors" try to answer the age-old question of whether or not you should post-process your images in the digital darkroom.

Download The Image Doctors #47 (NPC-ID-2007-08-16.mp3; 49:53; 17.5MB; MP3 format)