> > I would not however use a contact frame on top of the glass
> >with a bulbs-up system, as it would cut down the light more than
> >necessary. Find a way to rest it on the side supports...
>
> Or simply build the contact frame into the top of the exposure unit. This
> wouldn't be too conducive to dodging and burning though. Does one need to do
> this very often with the alt processes, or is such work usually done while
> preparing the printing negative?
I always try and do as much as I can before the negative goes under the
light source for the exposure, but I believe that it is best to give
yourself the option to change a little along the way. I strongly vote
for using contact frame, vacume, ect. to hold the paper and negative
under the light source and give yourself the room for feathering in areas.
I keep my light source almost 3 inches above the top of the contact glass.
EJ Neilsen
ejnasn@laplaza.org