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#1
08-14-2006, 11:04 AM
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Poor Projection Mirror Coatings
Anyone have any bad experiences with CLAUSING doing poor work on recoating mirrors? Just got back three mirrors from them which are unacceptable. Waiting for a reply to see if they will fix the problems.
Previous work they did was nice. 
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#2
08-14-2006, 05:28 PM
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Wow - P.A. Clausing, in Chicago?? I ground and polished my own mirrors for two Newtonian reflectors (telescopes) I built, and sent both mirrors to Clausing for aluminizing (actually, they call it "Beryl" coating, I think), and their work was absolutely flawless. That was about 12 years ago, though - sometimes with these family businesses, the kids take over and everything goes to hell...
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#3
08-14-2006, 05:39 PM
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I had two done about 6 months ago and both were excellent finishes.
Chuck
__________________
www.myvintagetv.com Learn from the mistakes of others - You can't live long enough to make them all yourself.
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