From: John Cremati (johnjohnc@core.com)
Date: 04/10/03-04:00:08 AM Z
I would expect it to be very difficult unless you have access to
suitable glass material, lens design, and manufacturing instruments.
Photographic optics including enlarging lenses do not consider to
minimize aberrations in the UV range. In addition, usual crown and
flint glasses do not transmit UV light of shorter wavelengths very
well, especially if many elements are used.
Ryuji
Cambridge, MA
Dig thru the Archives. Normal glass filters UV. There was a discussion on El Nikors enlarging lenses will transmit the necessary UV range as they are made of a special glass..... One of the List members tested it on a UV spectroscope and found it to be true.. Also it was found the" White glass " optical also transmits UV and is fairly inexpensive. White glass would be good for the film carriers ect. I had all of this info stored and my computer crashed and I lost it all...
John Cremati
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