[APML] Forcing mirror flop in SCTs.

[Alan Voetsch <critter12952@yahoo.com>]

Hi Scott,

--- Scott Hammonds <capella@creatorsview.com> wrote:
> I'd like to
> know more about forcing mirror flop, I'll look
> through the MAPUG
> archives. Thanks,

I think I'm going to go ahead and post this to APML
too. I know plenty of us use SCTs.

I picked up this info on SBIG. Adam Block mentioned
this procedure, and I asked him what he was talking
about. I've tried this and it works well to reduce
mirror related issues, of which there are many.
Procedure follows:

Before you start imaging, lower your OTA towards the
horizon (which horizon depends on which part of the
sky you'll be imaging in). Turn your focus knob in and
out a bit. This should get the kinks out of the
system. Simply fine tune your focus and go about
imaging. This should hold pretty well until you cross
the zenith. 

Alan


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