At 10:17 AM 02/12/2004 , C. Brendemuehl wrote: > >In B&W we can affect contrast and gray-level representation of color with >the use of filters. Some on the camera, some on the enlarger. > >What I'm thinking of is really a question about the "raw" format. Is it >truely "raw", the simple captured sensor data. >If it is, are there techniques in place to allow later treatment of the data >as though it were the original light, >making it monochrome, filtering the colors, and anything else >that I'd like to do on the front end.
You can emulate colour filters in PhotoShop. One filter effect that can not be done in PhotoShop is a polarising filter. There is an action, think it comes with PhotoShop, "Custom RGB to Greyscale" which used "Channel Mixer" interactively to change the colour response curved. Great for bringing out a differentiation between a middle red and a middle blue. Powell
