Re: [APML] dovetail systems, help!

[Roland Roberts <roland@astrofoto.org>]

>>>>> "Alan" == Alan Voetsch <alanv12952@yahoo.com> writes:

    Alan> All the various plates, etc, can be confusing. I'd suggest
    Alan> that you visit the Losmandy site for 2 reasons; I believe they
    Alan> list their equipment for sale in a way that *MAY* make it
    Alan> clearer which dovetail plate goes with which saddle plate. The
    Alan> other reason? Follow the link there to the Losmandy user
    Alan> group, it is very handy to have available when you run into
    Alan> Losmandy-specific questions.

I've been looking through the Losmandy site, and I guess I'm not
following it too well :-/  I was surprised when I found the GM8-DSP
(dual scope platform) dovetail bar does not fit in the stock GM8-SPD
(saddle-plate, D-size) that comes with the mount.  The bar is for the
smaller GM8-SP.  So, having my first assumption proved invalid has left
me unsure about the other stuff.  If I can pry free the time, I may stop
by Adorama Camera; I've forgotten his name, but they hired a guy who
used to be with High Point Scientific.  If he's around, I'll see if he
can help.

Hmmm, now that I reread your message, I see what you are saying.  I
mostly do see which dovetail and saddle plate go together.  What I'm
trying to figure out here is a little different.  Let me try to
rephrase.

I have the 120ST on a GM8 UV and it fits into the GM8-SP.  On top of the
scope rings are two flats for mounting, well, anything you want.  But if
I want to put the Pentax 67 + 300 mm, I'm going to want something like
the Losmand DR108.  But how do I attach that to the flats on top of the
rings?  Does it have slotted holes to line up?  Is there some other
piece I mount on the flats that the DR108 fits into?

I've asked on the Losmandy group a couple of other questions, but I'm
clearly not asking the right way since so far I've had a grand total of
zero responses to three questions over the past 1--2 weeks :-/ 

Thank's for the tip on the weight limits.  I know I'm going to have to
take apart the RA head and tighten up the worm a bit; right now I've got
close to 1-degree(!) of slop.  I've spent the last few semi-clear nights
practicing mount alignment and getting used to the Gemini.
    
roland
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Roland B. Roberts, PhD                             RL Enterprises
roland@rlenter.com                            6818 Madeline Court
roland@astrofoto.org                           Brooklyn, NY 11220
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