Re: lens 'recipes'
- From: Richard J Kinch <kinch@xxxxxxxxxxx>
- Date: Fri, 27 Apr 2007 00:05:17 -0500
Jim Klein writes:
It would be best to build your own calibrated against either an
optical flat or a very flat metal reference plate.
My design:
http://www.truetex.com/spherometers.htm
.
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