Hi Mike The lens does give an interesting, misty effect - it seems more noticeable on some images than others, probably due to the amount of flare caused by the direction of the light.
I have one of these lenses as well but mine's a bit later (it has "ISCO" rather than "JSCO"). I've never used it - it came on an old Edixa that I bought for my M42 collection. I'm fairly sure that the M42 mount was introduced with the Contax S in 1949, but I'm happy to be corrected. -- Cheers Brian ++++++++++++++++++++++++++++++++++++++++++++++ Brian Walters Association of Societies for Growing Australian Plants (ASGAP) Web: http://asgap.org.au Blog: http://www.blognow.com.au/gumnuts/ Australian Plants online: http://asgap.org.au/apol.html Quoting Beaker <[EMAIL PROTECTED]>: > I finally got the ISCO lens apart and fixed the focus problem. > Couldn't get into the iris mechanism, so I ignored it. > > The lens has some fungus marks in it. I think that is what is > giving the > misty, old-fashioned look. It isn't a lens for everyday use, but it > will > make a nice special-purpose lens. > > It has an aluminum body. The lens is marked "JSCO", instead of > "ISCO". > Scott posted that using a "J" instead of an "I" died out after > WWII, > so I'm > guessing this lens was made just after WWII. (When was the M42 > mount > introduced?) > > Its first pictures on Flickr: > http://www.flickr.com/photos/[EMAIL PROTECTED]/sets/72157600588847029/ > > I did a little experimentation with B&W conversions with > Lightroom. > Let me know what you think- comments and criticisms are welcome! ---------------------------------------------------------------------- Find out how you can get spam free email. http://www.bluebottle.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net