Re: Lenses Are On Order

[hjohnson@pluto.njcc.com (Herbert R Johnson)]

On Sat, 02 May 1998 10:49:33 -0500, Tom Droege <droege@wwa.com> wrote:
*>Chris and all,
*>
*>The experts might comment on this.  My view is not to clean optics until
*>they get really dirty.  Say a loss of 20% or so in transmission.  Chris

*> I figure that *I* will always do more damage by cleaning than it is worth.
*>
*>Tom 

This is a pretty good rule of thumb. We could have a long discussion of
cleaning optics, but I suspect the amateur astronomy formus have pretty
good comments about all this. Bottom line: if you don't know, don't
clean 'em.

Herb Johnson

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