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Old December 28th 06, 02:40 PM posted to rec.photo.equipment.large-format
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Default morse contact printers

I have used one of these for printing-out paper. The exposure time was
2 - 5 minutes. The heat build up during the exposure time was minimal.
I also printed to blue print paper.

If I had one of these things now, I would print some of my old negatives
to a home made silver chloride coated paper.



Richard Knoppow wrote:
"Thor Lancelot Simon" wrote in message
...

In article
.net,
Richard Knoppow wrote:

"murrayatuptowngallery"
wrote in message
egroups.com...

Doesn't sound like a boat anchor...sounds cool, other
than
the
unpleasantry of having to source and pay for replacement
argon lamps,
but the detail of circular placement and switches is
something that
would be a pain to implement.

How about contact print internegs onto graphic arts
film...that's slow,
right?


If its as slow as contact printing paper it should work
like a charm.
The lamps are arranged with separate switches for each
lamp for dodging but the lamps are also arranged with
additional switches that turn them on or off in concentric
rings. The 10x10 printer has 39 low wattage GE UV lamps.


These are rather nice for platinum printing.

--
Thor Lancelot Simon



I am surprized they are intense enough. Platinum printing
usually requires a very strong source such as a plate burner
or not too strong daylight, similar to printing out paper.
The UV sources in the Morse printer are about 4 watts each.
They were designed for short printing time on paper like
Azo, not for printing out papers. Have you actually used a
Morse printer for Platinum?