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Pentacon B mount lenses
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PostPosted: Fri Aug 02, 2013 3:48 am    Post subject: Pentacon B mount lenses Reply with quote

I've been thinking about what lenses were produced in the B mount by Pentacon and Zeiss (I'm not interesting in the Cosina, Sigma and Samyang fakes) and it seems to me a very restricted range:

Pentacon

2.8/28
2.4/50
1.8/50
2.8/135

Is that it? Just those four? I can't think of another, I have copies of these four.

Zeiss

Flektogon 2.8/20
Flektogon 2.4/35
Tessar 2.8/50
Macro Tessar 2.8/55
Pancolar 1.8/50
Pancolar 1.4/50
Pancolar 1.8/80
Sonnar 3.5/135
Vario-Pancolar 2.7-3.5/35-70
Vario-Pancolar 4/80-200

I'm sure I've missed a Zeiss or too, maybe the 2.8/180 also exists in B mount? I know some others are mentioned as being made in B mount, but I've never seen them, so I just listed the Zeiss I have actually seen.


PostPosted: Fri Aug 02, 2013 7:59 am    Post subject: Reply with quote

Missing the Meyer zoom and the Zeiss 2,4/28mm and 2,8/200mm

Klaus


PostPosted: Fri Aug 02, 2013 8:36 am    Post subject: Reply with quote

B mount is the one from these 1980s prakticas ?
Not the m42 electric (3 plugs) mount

I think I have seen a Prakticar 300/4 in this mount. I remember because I hated the fact it was not m42. I also remember asking whether the mount could be swapped but no answer :<


PostPosted: Fri Aug 02, 2013 8:43 am    Post subject: Reply with quote

Yep, the 300/4 existed as well, based on the Sonnar I guess:

http://forum.mflenses.com/viewtopic.php?t=29810

http://forum.mflenses.com/viewtopic.php?t=32843


PostPosted: Fri Aug 02, 2013 8:44 am    Post subject: Reply with quote

There is indeed a 2.8/200 mm Prakticar, however it is extremely rare, just like the 2.4/28 mm.
And of course there is a 4/300 mm Prakticar, which is common enough.


PostPosted: Fri Aug 02, 2013 9:00 am    Post subject: Reply with quote

Yes, of course the 4/300. Excellent lens!



Klaus


PostPosted: Fri Aug 02, 2013 9:39 am    Post subject: Reply with quote

This site is a good source for Prakticar although the data may not be complete.
http://praktica.planetaclix.pt/lenses.html


PostPosted: Fri Aug 02, 2013 9:47 am    Post subject: Reply with quote

If you consider the B mount can take a M42 adapter then more Pentacons can be added e.g. M42 Pentacon 200mm f4 bokeh monster


PostPosted: Fri Aug 02, 2013 12:03 pm    Post subject: Reply with quote

ManualFocus-G wrote:
Yep, the 300/4 existed as well, based on the Sonnar I guess

I believe it's a new design. The Sonnar 300/4 is a medium format lens; the Prakticar covers 35mm sensor only, and is a much smaller lens, and has its rear element much closer to film plane, so definitely a different design.


PostPosted: Fri Aug 02, 2013 12:14 pm    Post subject: Re: Pentacon B mount lenses Reply with quote

iangreenhalgh1 wrote:
I've been thinking about what lenses were produced in the B mount by Pentacon and Zeiss (I'm not interesting in the Cosina, Sigma and Samyang fakes) and it seems to me a very restricted range:

Pentacon

2.8/28
2.4/50
1.8/50
2.8/135

Is that it? Just those four? I can't think of another, I have copies of these four.

Zeiss

Flektogon 2.8/20
Flektogon 2.4/35
Tessar 2.8/50
Macro Tessar 2.8/55
Pancolar 1.8/50
Pancolar 1.4/50
Pancolar 1.8/80
Sonnar 3.5/135
Vario-Pancolar 2.7-3.5/35-70
Vario-Pancolar 4/80-200

I'm sure I've missed a Zeiss or too, maybe the 2.8/180 also exists in B mount? I know some others are mentioned as being made in B mount, but I've never seen them, so I just listed the Zeiss I have actually seen.


A bit messed up in the above table:

The second and the third versions of 50/1.8 are PENTACON made, and
the only first version is CZJ made (ie. Pancolar)

The first version of 50/1.4 is CZJ made, and the second version is PENTACON made.

Macro Tessar 2.8/55 is a wrong name, it is called Macro Prakticar 2.8/55.
It is a modified double Gauss type, more like (to me) Makro-Plazmat design.

There was PENTACON made zoom Prakitcar 3.5-4.8/35-70, 50 were made,
also 100 were made for M42 mount.

Officially 5.6/1000 (CZJ) and 5.6/500 (PENTACON) are counted as B-mount ones,
also 2.8/200 and 4/300 Prakticars are made by CZJ.

4/300, 5.6/500, and 5.6/1000 all have replaceable mounts, B-mount is one of them.
I am not sure about that there was P6, M42, and some other mounts available.

The most of them except 5.6/1000 >
[/url]http://www.pbase.com/kkawakami/image/57718014[url]


Last edited by koji on Tue Aug 06, 2013 4:07 pm; edited 1 time in total


PostPosted: Tue Aug 06, 2013 11:26 am    Post subject: Reply with quote

Here is a very good table with - I think - all lenses from Pentacon an CZJ which includes all PB-lenses:

http://www.dresdner-kameras.de/files/timetable_lenses.pdf


PostPosted: Tue Aug 06, 2013 12:50 pm    Post subject: Reply with quote

gewa13 wrote:
Here is a very good table with - I think - all lenses from Pentacon an CZJ which includes all PB-lenses:

http://www.dresdner-kameras.de/files/timetable_lenses.pdf


Splendid work, thanks for sharing,

Renato


PostPosted: Tue Aug 06, 2013 3:09 pm    Post subject: Reply with quote

We did rescue and host this site http://praktica-users.org/