Re: Coma /Collimation
Bob Luffel (bobl@hpgrla.gr.hp.com)
Mon, 8 May 95 18:08:20 MDT
>
> Irregardless of whether you are using a laser collimator or
> sight-tube/cheshire tools, you can only be as accurate as your sloppiest
> component, usually the facuser. The Crayford focusers seem to be the best
> design so far. An ultra-precise alignment tool won't help in a loose facuser.
> I find a good sight tube and a cheshire adequate for my needs. The laser
> collimators can be very accurate in principle, but they sometimes are not
> build as accurately as they could be. And I believe you should be confident in
> the use of the traditional tools before you would use a laser collimator,
> because you must understand what you are doing for them to produce acceptable
> results.
>
Actually, I find the Laser produces better understanding - you can see
directly how your adjustments affect things... Plus, they are fun to
play around with! (ever watch a cat chase a laser spot on the ground! -
perhaps that should be taken to alt.cat.games).
Bob