Re: ATM A question, if I may

[Ed Falk <Ed.Falk@eng.sun.com>]

> I removed the mirror cell today to put a spot at the center for =
> collimation purposes. I noticed that the mirror is held in place with =
> three, L shaped rubber clamps (one was so loose it was rattling!). How =
> tight should I tighten the clamp screws? I don't want to distort the =
> mirror (about 1 inch thick), but I don't want it to move around too much =
> either.

Someone correct me if I'm wrong, but I think that you don't want the clamps
to be tight; they could distort the mirror.

The clamps are really there to catch the mirror if you happen to point the
telescope down.  Otherwise, the mirror should simply rest on its cell.

        -ed falk