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Old 24-10-2018, 03:18 PM
Imme (Jon)
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Imme is offline
 
Join Date: Aug 2017
Location: Kyneton
Posts: 840
Quote:
Originally Posted by Stefan Buda View Post

Never stops amazing me how long it takes to get an optical surface from about 1/4 lambda to something like 1/10 lambda (on the wave front). The damn law of diminishing returns really tests one's patience.
Looks great....what kind of time are you talking to go 1/4 to 1/10?
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