Re: [ATM] Objective Maintenace

[Michael Lindner <mikell@optonline.net>]

On Wednesday 19 May 2004 10:34 pm, Bill & Becky wrote:
> ...general maintenance due to time, cleaning, check spacing and
> alignment?

I don't have any general recommendation for refractor repair (except maybe 
Captain's Nautical?), but I wouldn't think anything is needed except a 
cleaning. The coatings on an objective lens should be fairly durable, so 
after blowing off dust and grit (with a can of compressed air), any good 
quality WET lens cleaner should do. Check out your local photo shop (not the 
5 minute place, a good one). You should not need to disassemble the lenses 
unless stuff got in between them (which shouldn't happen unless you 
disassembled them...). The spacing is fixed by spacers, and is 
non-adjustable. The collimation isn't likely to change over time either, but 
that you'd wan to check under the stars anyway...

-- 
Michael Lindner
http://www.starastronomy.org *** http://home.att.net/~mikel
http://www.atmsite.org *** http://www.atmlist.net

_______________________________________________
ATM mailing list http://www.atmlist.net/