Since Novak is no longer in business, how do the UO mirror cells perform, specifically a full thickness Pyrex 12.5" mirror with a 12.5" UO cell? I wouldn't think of using a UO cell for a thin or ultra thin mirror but hope to get away with one for a full thickness mirror. Thanks!
UO Mirror cell question
Started by khking, 03/14/2005 10:51PM
Posted 03/14/2005 10:51PM
Opening Post
Posted 03/15/2005 03:56PM
#2
Kurt King said:
Since Novak is no longer in business, how do the UO mirror cells perform, specifically a full thickness Pyrex 12.5" mirror with a 12.5" UO cell?
I went through this same painful exercise with a UO cell for an 8" mirror. Run, do not walk from the UO cells... My UO cell was o.k. at room temperature, but when outside in 20* temps at night the UO cell contracted and pinched the mirror. I replaced the UO cell with one from DAR in Canada.
http://www.oneilphoto.on.ca/oneilatm.htm
The DAR cell is superior in every way.
Paul
Funding Member
