Tim - I'm inclined to believe that while this lens may have been intended for photographic purposes, it does not appear to be a standard large-format lens. My guess would be that it might have been part of either a motion-picture camera, or a special purpose (eg, aerial) military camera system. B&L are known today mainly as a manufacturer of eyeglasses and contact lenses, but they were part of the "optical mafia" that grew up in the Rochester area a century ago. They manufactured lenses for a wide variety of applications, and as Andy noted, supplied lenses to Haloid - which later morphed into Xerox. However, I doubt that this was a copying machine lens - there would not a reason for a copying machine manufacturer to invest in the added cost of an adjustable aperture for their application. Edmund Scientific (and a bunch of similar companies) routinely offer lenses like this. Don't know that I would believe the value listed on the German web site - after all, since you paid a buck for it, it has to be worth at least that much. Louie -----Original Message----- From: owner-photoforum@xxxxxxxxxxxxxxxxxx [mailto:owner-photoforum@xxxxxxxxxxxxxxxxxx] On Behalf Of Tim Corio Sent: Friday, April 20, 2007 3:16 PM To: List for Photo/Imaging Educators - Professionals - Students Subject: Re: Help identify this lens I found a reference to my lens at http://www.macrolenses.de/ml_detail.php?ObjektiveNr=1 This site says the value of my lens is "0". I guess I got ripped off. Oh well. It's just a dollar. The mount is listed as '1.325" x 1/8"'. Is this a standard mount? Thank You, Tim Corio
