Re: my AP1200 points off into space
Hi Geert,toggle quoted messageShow quoted text
I agree, all ring mounts should be made that way.
However, there is one work around, that Roland & Howard described recently on this group.
If you can get your guide scope as close to parallel to the OTA as possible - perhaps using reticle eyepiece(s) - then you can simply adjust the screws on the guide scope to remove it's parallax error. The view in the main OTA should still be "reasonably close" (though not centred), to the target and still usable, unless you are at a very narrow FOV.
It's a compromise, I know, but simpler to adjust 3 tiny finder screws than adding shims and retesting, if you don't want perfection right away.
Another way, I wonder if it would be possible to someday, enter an RA/DEC parallax offset parameter into the Keypad. But, I suppose that would be the same as doing a ReCal.
----- Original Message -----
From: "Geert Vandenbulcke" <geert.vdbulcke@...>
Sent: Tuesday, September 30, 2008 2:43 AM
Subject: RE: [ap-gto] my AP1200 points off into space
Well, simple in theory yes. But imagine at night having to take of a +20 kg