From: stephen wasilewski (steve_wasilewski@yahoo.com)
Date: 04/20/02-02:07:02 PM Z
Thanks to all. I will try the suggestions. The sun
test is a good start. I doubt the print frame to be
the probelm as I did add foam backing to assure a good
pressure and flatness. This did not help. Also, these
are not large prints - 8x10.
I am considering a used Nuarc with Metrolux
integrator. Does any one have a fair price estimate
other than "what one is willing to pay?"
Thanks,
Steve
--- Sandy King <sanking@clemson.edu> wrote:
> As others have suggested the most likely culprit is
> poor contact
> between the film and paper. Poor contact can reduce
> sharpness even
> with the semi-collimated light sources such as those
> in plateburners
> but the problem is much worse with fluorescent banks
> where some of
> the exposing light that reaches the film arrives at
> angles from 45 to
> 85 degrees.
>
> If you are making large prints with a fluorescent
> bank a vacuum frame
> will almost certainly improve sharpness. Even the
> very best contact
> printing frames can give poor contact with large
> prints if not
> adjusted correctly. In my own work I have found that
> a layer of
> plastic packing material, of the kind with integral
> small bubbles,
> placed between the print and the back of the frame,
> in combination
> with a lot of pressure, will provide sufficient
> contact in most cases.
>
> Sandy King
> --
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