Ric--on the dob you clean the mirror by tiping it 90 dgrees and then pour a
gallon of distilled water on it(having first removed the base encoder)--I
wouldn't try that with my LX-200. Andy

----------
> Subject: Re: [M]: Testing Optics
> Date: Saturday, April 25, 1998 12:56 AM
>
>
> writes:
> >
>>
> Here's an idea.. ;-)) take a look at a 20" Dobsonian, now look
> again and tell me what you see... hint: its not the wood finish. Do you
> notice any bug netting ???? Is that $3000 plus mirror really exposed to
> the elements and your little scope has less than 2" hole in one end and
> your worried about dust ???? The cheesecloth would serve a better use
> making summer sausage. Just kidding......I use a 1a filter on my scope
> to seal it but I do take it off most of the time...
>
> ric
> curator of the Willard Observatory
> San Marcos, California
> 216 xt images at:
> http://members.aol.com/rlecker/optas.html
>
> _____________________________________________________________________
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