[pure-silver] Re: Common Printing Mistakes
- From: "Nicholas O. Lindan" <nolindan@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Wed, 25 Jun 2008 00:25:47 -0500
"Janet Cull" <jcull@xxxxxxxxxxxxx>
Nicholas O. Lindan wrote:
> #6) Forgetting to lock the lensboard.
What does that mean?
A Beseler 45 series enlarger has one giant rack, attached
to the lamp housing/condenser, on which the negative and lens
stage ride.
A knob on the lens stage 'locks' the lensboard in position
on the rack. Like most things Beseler the operation of this
locking knob is a charitable "A" for effort and a far more
charitable "C" for implementation. The action of the knob
is reminiscent of overheated drum brakes, it feels that
the more I tighten the knob the more the lens stage is liable
to slip.
The problem of the lens moving whenever a negative carrier is
inserted is, TTBOMK, confined to late-model 45MX enlargers
with untapered bellows between the negative and lens stages,
and only with 50mm lenses and large print sizes - which covers
about 80% of my prints.
--
Nicholas O. Lindan
Cleveland Engineering Design, LLC
Cleveland, Ohio 44121
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