Hi Paul, Why not try a Super-Multi-Coated Tak 300/4? I still regret selling mine, but it was a superb lens, close focus wasn`t bad at 18 feet. Steve Larson Redondo Beach, California ----- Original Message ----- From: "Paul F. Stregevsky" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, January 05, 2002 3:59 PM Subject: CZJ Sonnar 300/4: three varieties? switchable mount?
> I've been thinking about getting a Carl Zeiss Jena 300/4 Sonnar in M42 > mount. I've seen its filter size described as 77mm, 86mm, and 95mm: > > The 77mm version focuses to 3 m, weighs 1,950 g, and has 5 elements in 3 > groups. It was made from the 1960s through 1980s; multicoating began in the > mid 1970s. > > The 86mm version is the Carl Zeiss Jena Auto S Auto MC Electric (or > something like that). It focuses to 4 m, weighs 1,650 g, and has 6 elements > in 5 groups. It is praised on Nathan Dayton's site, > http://www.commiecameras.com, on this page: > http://www.commiecameras.com/ddr/p6/lenses/index.htm > > The 95mm version is a Carl Zeiss Jena that I know nothing about. I just > know that it's mentioned as 95mm on one of the four current EBay listings: > > http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1316507457 (Pentacon > 6 mount) > > http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1315207641 (Praktica > bayonet mount--however you spell it) > > http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1315956584 (Pentacon > 6 mount; mentions the 95mm filter) > > http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1315956584 (Exakta > mount) > > Should I consider only the 86mm version--definitely autoaperture, so > modern? Can it definitely be fitted with (or found with) an M42 mount? > > And what can anyone tell me about the 95mm version? > > Then there is the issue of the mounts. I know that if I want it to be M42, > it must be a Praktica mount. But weren't those old mounts replaceable? > Wrote one user: "Most of these [old CZJs] have a coarse screw-thread into > which the actual camera adaptor screws, a remnant of its design as a lens > for use on the old Contax RF Flektoskop and Flektometer reflex housings. A > lens like this can be readily adapted by the fabrication of a new adaptor." > > The last thing I want is to buy a Pentacon to M42 adaptor, then try to fit > onto it an M42-to-K adaptor. But can't I essentially unscrew the Pentacon > or Exacta mount and screw in a CZJ M42 mount (maybe $60?), giving me > essentially a "made-for-M42" lens? > > > Paul Franklin Stregevsky > 13 Selby Court > Poolesville, Maryland 20837-2410 > [EMAIL PROTECTED] > H (301) 349-5243 > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
