Actually, once you open the adjusted file in PS and save it in the
fixed form as a tif in some directory of your choice, the original
capture remains the way it came off your card.
However, it is a good idea to make a backup folder of the origs and,
once you've completed processing all the keepers on the card, burn a
CD of the shoot.
Some paranoids make a CD of the origs and a dupe folder of them as
well, then work on the original folder form which they made the dupe
and burned the CD.....
--
Emily L. Ferguson
mailto:elf@xxxxxxxx
508-563-6822
New England landscapes, wooden boats and races, press photography
http://www.vsu.cape.com/~elf/