12 is the jpeg level with the smallest amount of compression, and
concomitant loss, offered by Photoshop.
Yes, it's now possible to save tiffs with layers, although I think
that didn't come in until Photoshop CS. I don't know what the
difference is between saving a layered tif and a layered psd file.
EXIF is the acronym for something which relates to data about the
camera settings when the shot was made. The camera collects that
info and embeds it in the file. I guess it's not there with film,
right someone?
--
Emily L. Ferguson
mailto:elf@xxxxxxxx
508-563-6822
New England landscapes, wooden boats and races
http://www.vsu.cape.com/~elf/