Bill Owens wrote: > If I were to use a B&W filter, say yellow or red on a DSLR then convert the > image from the sensor to B&W, would the results be the same as on film?
Not a stupid question at all! In theory, it should be pretty much the same as shooting B&W film with the filter. Try it and see. (It's not as if you'll be wasting film!) More significantly, post-processing can never *exactly* duplicate the effects of shooting through a color filter: After you've converted full-spectrum light into RGB values you can simulate the look of various color filters in B&W conversion, but never duplicate the effects precisely. This is because of metamerism, the way a discrete wavelength of light gets broken up into three separate RGB values. (The term "metamerism" is usually used in a negative context, when describing the effects of prints appearing to change color balance under varying light sources, but it's also the term for the way human and animal visual systems - and film/sensors - represent an infinite spectrum of colors through varying amounts of just three colors.) -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
