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11-26-2020, 07:08 AM - 1 Like   #1
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Pentacon Prakticar 28mm f2.8 MC

another member of the Dead Lens Mount Club - this one for the Prakticar B mount

that's her on the left, compared to an SMC 24mm f2.8:










please note: this lens has not been modified to work on a K-mount body; I'm using it with an adapter on a Fuji X-mount body.

11-26-2020, 07:09 AM - 1 Like   #2
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11-26-2020, 07:10 AM - 1 Like   #3
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11-26-2020, 08:03 AM - 1 Like   #4
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11-26-2020, 06:48 PM   #5
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11-26-2020, 06:48 PM   #6
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11-27-2020, 01:30 AM - 1 Like   #7
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Mine is anything but dead in it's original mount, regularly in use by my daughter (4th picture in the post) on a BX20s.

The VEB Pentacon followed a different strategy in the transition from M42 to a bayonet mount than Pentax: They reduced the register distance so that they could create a flanged adapter. This now makes adaption to K-bayonet difficult or impossible, i.e. it's not possible to reach infinity focus. I used some of them on a Canon EOS with a very thin adapter that somebody hand-crafted in Poland.


Last edited by JensE; 11-27-2020 at 10:16 AM.
11-27-2020, 05:37 AM   #8
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QuoteOriginally posted by JensE Quote
Mine is anything but dead in it's original mount, regularly in use by my daughter (4th picture in the post) on a BX20s.

The VEB Pentacon followed a different strategy in the transition from M42 to a bayonet mount than Pentax: They reduced the register distance so that they could create a flanged adapter. This now makes adaption to K-bayonet difficult or impossible, i.e. it's not possible to reach infinity focus. I used some of them on a Canon EOS with a very adapter that somebody hand-crafted in Poland.

thank you for sharing this, Jens...

I was perhaps mistaken in calling it the 'Dead Mount' club.... perhaps more like 'Orphaned Mount Club'?

unfortunately, I may be attempting to create a silken purse from this lens, especially when compared to the other B-mount lens I have, the CZJ Macro Prakticar 55/2.8
11-27-2020, 09:55 AM   #9
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Quality wasn't very consistent back in the 80s. My 28mm Prakticar (Meyer Orestegon) is actually pretty good, my Prakticar 35/2.4 (the praised Carl Zeiss Jena Flektogon) less so.
03-01-2021, 05:06 AM   #10
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I've spent the last two days shooting only with this lens, attempting to get a feel for it:



03-01-2021, 05:06 AM   #11
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03-01-2021, 05:07 AM   #12
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03-01-2021, 05:08 AM   #13
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03-01-2021, 05:08 AM   #14
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03-01-2021, 05:09 AM   #15
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