Can we convert the Kiev/Pentacon 30mm Fisheye to P67 mount

[john_brink]

Has anyone investigated the Kiev/Pentacon/Ukrainian 30mm lens for conversion to the P67 mount? I believe they have a decent reputation for sharpness and we could use it as a total manual preset lens.

 

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Best,

John Brink

[gert_jan_bollen]

Hello John,

 

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It is easy to convert a P67 lens to the 645 or 35 mm systen

becourse the distance from the film to the lens mouth is with the P67

about +/-80mm and with 35 mm about 44mm so there is space for a

adaptor Pentax is selling those adapters. For the

Kiev/Pentacon/Ukrainian lens this space is about 72 mm so it is not

possible! unless you remove parts of back of the lens body but then

there is the risk that the back of the lens will hit the mirror!

 

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and wat about the edge definition since the area which should be

sharp on a 6*7 negative is larger than 6*6

 

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Conclusions: It is only possible to use lenses to convert which are

designed for a larger ar the same format.

 

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Kind regards Gert Jan

[sakari_makela]

I've seen a Pentacon 300mm lens converted for P67, but it probably is

easier with long lenses. Maybe the lens barrel was shortened a bit.

A 30 mm lens has not much barrel to shorten.

 

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Sakari

[reinhard_becker1]

I have such a altered Kiev 30mm for my P67. It4s back is complete

rebuild with a new bajonett, you have to use it total manually. The

optic is fine, also for the 67 format, but I don4t have checked it

with the original fisheye.

I bought mine second hand, but I knew a company in Germany that will

do such conversions. Look at :

http://ourworld.compuserve.com/homepages/fotowiese/