MFlenses - A new life in a digital age
MFLenses 2026

Manual Focus Lenses Forum

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.
logovectorizer.com
Spotlight

Featured partner placement for the forum front page.

Carl Zeiss Jena Prakticar 28mm F2.4 with Floating Element
Post new topic Reply to topic
View previous topic :: View next topic  


Post
Posted: Fri Jul 25, 2008 2:46 pm
Post subject: Carl Zeiss Jena Prakticar 28mm F2.4 with Floating Element
Reply
Post
Posted: Fri Jul 25, 2008 2:46 pm
Post subject: Carl Zeiss Jena Prakticar 28mm F2.4 with Floating Element
Reply
This is the rarest lens I have (so far). It weighs 420g, MFD is 19cm, this is the only Prakticar lens with rotating front when focusing,
and only one with floating mechanism for its rear lens block. It seems to be made after mid 1980 when Pentax and Zeiss collaborated to
design 28mm f2 Hollywood lens, no one knows how many were made. I have seen only three so far in the last five years.



Post
Posted: Fri Jul 25, 2008 4:38 pm
Post subject:
Reply
Post
Posted: Fri Jul 25, 2008 4:38 pm
Post subject:
Reply
very nice samples on your pbase for this rare lens


Post
Posted: Fri Jul 25, 2008 8:59 pm
Post subject:
Reply
Post
Posted: Fri Jul 25, 2008 8:59 pm
Post subject:
Reply
Wow! Many thanks to sending us! I also read somewhere this is one of the rarest one.


Post
Posted: Sat May 22, 2021 1:36 pm
Post subject: Re: Carl Zeiss Jena Prakticar 28mm F2.4 with Floating Elemen
Reply
Post
Posted: Sat May 22, 2021 1:36 pm
Post subject: Re: Carl Zeiss Jena Prakticar 28mm F2.4 with Floating Elemen
Reply
koji wrote:
This is the rarest lens I have (so far). It weighs 420g, MFD is 19cm, this is the only Prakticar lens with rotating front when focusing,
and only one with floating mechanism for its rear lens block. It seems to be made after mid 1980 when Pentax and Zeiss collaborated to
design 28mm f2 Hollywood lens, no one knows how many were made. I have seen only three so far in the last five years.


Congrats for your lens!

Between 1979 and 1981 only 390 lenses have been produced. Details in german language you can find here:

https://www.digicamclub.de/showthread.php?t=21342

I also have one of those rare lens. It took me about 12 hours with try and error to adjust the focus correctly at OO.

Greetings

Rick


Post
Posted: Sat May 22, 2021 3:57 pm
Post subject:
Reply
Post
Posted: Sat May 22, 2021 3:57 pm
Post subject:
Reply
Welcome Turtle Rick_
Post new topic Reply to topic
Page 1 of 1