Has anyone heard about LF lenses made of quartz? I heard rumours about that (not the Gotar, that is a myth btw.), but would like to learn about that...
Thanks,
Klaus
Has anyone heard about LF lenses made of quartz? I heard rumours about that (not the Gotar, that is a myth btw.), but would like to learn about that...
Thanks,
Klaus
Thanks Bruce,
this is actually what I would like to find out, if there has been photography in the ultraviolet domain once...
Klaus
Hi Klaus,
Perhaps you'll find some of these links interesting:
http://www.sciencephoto.com/html_tec...ve/ultrav.html
http://www.rit.edu/~andpph/text-infr...traviolet.html
http://www.naturfotograf.com/uvstart.html
Marko
Thanks Marko,
these sources actually also led to my question. I'm more interested in the historical aspect of UV photography. What currently is and can be done is known to me.
Klaus
There has been some quartz stuff done for the military. As I understand it, this is more often done with mirror lenses than conventional lenses. Mostly they are interested in telephoto so they can keep better watch on us.:-)
Ed Richards
http://www.epr-art.com
Thanks Ed,
I know some catoptric (mirror only) lenses which perform 200....14.000nm actually (UV to deep IR) wit Zeiss Zerodur front surface mirrors and special UV enhanced coating, but of not much use actually (I have those).
Klaus
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/ for UV Images and lens/filter info
http://photographyoftheinvisibleworld.blogspot.com/ my UV diary
I came across an old recommendation to use thin lenses with few elements for UV photography; a 100 years old book recommended using nothing more complex than a Periskop.
Are you interested in collecting them or having one built? There are custom optics firms that can do quartz, again, they usually work for military and industrial contractors.
Ed Richards
http://www.epr-art.com
Klaus
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/ for UV Images and lens/filter info
http://photographyoftheinvisibleworld.blogspot.com/ my UV diary
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