Don Roberts wrote:
Roy, I know what you are after since I have done that myself. It seems that if you took 3 separate exposures through red, blue and green filters, it would be very easy to combine them in Photoshop. Much more so than with film. I built a drop shutter arrangement years ago for this sort of thing.
Yep, quite easy. See <http://dd-b.net/cgi-bin/picpage.pl/dd-b/SnapshotAlbum/data/2001/05000-May%20Misc?pic=Ep850-20010507-001-comp-2>. Inspired in my case by the LoC exhibit of the photos of Prokudin-Gorskii <http://www.loc.gov/exhibits/empire/>.
I did the simple thing -- took three ordinary exposures without filters, and then extracted the R, G, and B layers.
-- David Dyer-Bennet, dd-b@xxxxxxxx; http://dd-b.net/ Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ Photos: http://dd-b.net/photography/gallery/ Dragaera: http://dragaera.info
