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RE: [ATM] Use of bearings in (static) mirror cells


Hi Jerry,

>The clips even if not touching the glass will
>cause some diffraction if they extend over the mirror

My dob has a stop preventing it from going down to horizontal. So I use
gravity to hold the mirror in the cell. 

      ************************

I think that any cell which has any possibility of pinching the mirror
should be avoided. A mirror should be free to do what it wants. At least, that is so if one wants a high-resolution scope. If you just want a fuzzy light bucket, then mount it any way you want. If you only have 2 arc-second seeing, then it doesn't matter (you should move!).

C-ya,

John








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