9ThreeXFifty7,

I am very curious about this test that you mention. Not an optical engineer myself, but my family own a 100 year old optical business and have been distributors for Zeiss, Carl Zeiss of Jena (during the Cild War years) Metro Optik of Czechoslovakia (Now Meopta) Bausch and Lomb, American Optical and several others. I have been to virtually every major European and Far Eastern plant manufacturing and coating lenses in the past and am more than a little familiar with the processes involved in designing and building scopes, though, ironically, I don't use any myself. I have, though, built several telescopes for fun grinding and edging the lenses myself and coating them with Leybold, Balzar and Satis vacuum coating units.

I would appreciate any more information you have on this test - it would help me improve my knowledge of a subject that I was at least partially involved in through my stockholding in my family's business over four decades.