From: "William Cook" 
To: atm{at}shore.net
Reply-To: "William Cook" 


Hello All:

I would be pleased to hear from anyone who has chosen to experiment with
phase contrasting testing. (The Best of Amateur Telescope Making Journal,
Vol.2, pp 320-345)

I would be especially pleased to learn of any experiments with
modifications of the testing procedures or equipment. Surface smoothness
(IMHO) gets far too little attention from most folks who pride themselves
on perfection, and I am interested to see if the article has made an
impression on the optical perfection crowd.

Kindest Regards,

Bill Cook

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