William Robb wrote: >Igor, filters aren't all that spectrum specific, and tend to be cut >filters, in that they don't pass any spectrum below a particular >wavelength (which will vary from filter to filter). >UV florescence has been a problem since the dawn of electronic flash. A >lot of things reflect a disproportionate amount of UV light.
Mr. Robb speaks the truth. And note that fluorescence involves absorbing light of one wavelength (ultraviolet) and re-emitting the energy at *different* wavelengths (in the visible spectrum). -- Mark Roberts - Photography & Multimedia www.robertstech.com -- 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.
