> make any difference. I never tried it with sunlight where their may be
> more of a printing speed difference.
I posted this about a week ago ....I tested the Gravity Works .... *in
sunlight* against plain glass...The speed was very little different, the
only possible advantage being that if you decided to expose gum in full
sun it would fog (ie, transmit the heat) a little less under the plastic.
> One major problem with it is the plexiglass is not rigid enough to provide
> good contact between the negative and paper. There were bubbles of
> unsharpness in the prints where there wasn't good contact. I wouldn't
> recommend it.
Another major disadvantage is that the plexi scratches very easily. In
fact when I bought mine several years ago it came with a leaflet advising
that you get a piece of glass cut to size and use that for "regular"
exposures to save the plexi.
I don't like those rubber tubes that fasten the thing either....they're
hard to pull tight and if you let one go accidentally it can put your eye
out or raise a major welt .... On the other hand, it should be said that
it gives better contact with *glass* in it than other frames I've tried in
11x14 ... Still, I doubt that it's as good as just plain plate glass on
plate glass...
Judy