Originally Posted By kevonionia






Thing I've always wondered is: Does a red filter work the same for digital as it did when you were shooting with those slow, fine-grained B&W films like Plus X or that old film-speed-turtle, Panatomic-X, with an ASA (now called ISO) of 25 or 64 -- can't remember which? Does it kick up the contrast and turn the blue sky black (besides giving the image a red hue that's removed with Photoshop?)






yes, but we don't use glass filters anymore. The image is totally converted in Photoshop or a plugin therein. A red digital filter does act the same as a red glass filter did with tri-x or plus-x. It darkens down the sky and affects various portions of the image's color response the same way. Now you get several colored filters to try or a slider to reach any point along the way. You can also use another feature to further tune up a complete color response much like using different b&w films did. Now we can work with contrast much more precisely as well.