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Subject: RE: [M]: Re: Thumb Screws for Collimation (again)
From: Freeman, Philip L
Reply To: mapug@shore.net
Date: Fri Dec 03 06:37:32 1999
|
While you're here, how about checking out the
Astronomy Book
List ? |
I agree with Brian. Take the corrector off, noting the marking. And wear
gloves so that you don't put oil on the corrector or secondary. While the
corrector is off, use compressed air to blow any accumulated dust off the
primary, secondary, and inside corrector. If need be (of course, ONLY if
need be) you can clean your optics while they are exposed.
Phil
> ----------
> From:
> Sent: Friday, December 03, 1999 4:47 AM
> Subject: Re: [M]: Re: Thumb Screws for Collimation (again)
>
>
>
> Why not just remove the corrector plate and do it correctly? There will
> be an
> index mark (put there either by Meade or by you before you remove the
> plate) and
> it's no big deal. The collimination will be totally off anyway so why not
> do it
> the easy way. In addition, I've found that the screws will bind on the
> way out,
> and may (I wasn't trying to actually remove them but was rather trying to
> get
> back into collimination after having the secondary recoated) actually not
> be
> removable one at a time (i.e. if the other two are not also back out so
> that the
> secondary remains relatively parallel to the secondary housing and the
> screws
> don't bind.)
>
> FWIW. regards, Brian
>
>
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