Re: Nikon Labophot fine focus problem
- From: David Ellis <dpellis@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Sat, 20 Dec 2008 21:03:15 +0000
In the 3rd Millenium, on Sat, 20 Dec 2008 06:08:03 -0800 (PST), Kevin
Cunningham <smskjc@xxxxxxxxxxxxxx> submitted this:
Too_Many_Tools wrote:
I have in front of me a Nikon Labophot. Its stage slowly creeps
downward due to gravity...with the fine focus knob slowly turning in
response to the stage creep. Is there an user adjustment that I can
make to correct this problem? Also what causes the focus assembly to
do this...obviously it did not do this before.
I would like to find a copy of the user and accessory documents that
apply to this instrument....can you point me to where one might find
it?
Thanks for whatever help you can offer.
You shouldn't have to do a thing. Just reach over to the right hand
side coarse focus then move slightly back. There is friction ring
there that has to be set properly, the right tension will stop the
downward creep. A bit to much makes the mechanism feel tight.
Kevin Cunningham
Later models did have a tension ring but it was just for the coarse
focus. The fine focus will drift if there is not enough pressure from
the washer on the fine focus knobs - no matter how much tension is
put on the coarse.
--
Dave Ellis
Fireblade cbr900rry
.
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