135mm Hekor and Elmar, same helicoid?
Old 05-11-2019   #1
mystichobo
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135mm Hekor and Elmar, same helicoid?

Hi guys!

I have a lovely Elmar 135mm in visoflex M mount. Does anyone know if I could put it in a Hektor's Helicoid/Mount to use on my iiF?

The only reason I considered it could be an option is that the visoflex adapter says that is can have both the hektor and elmar lens heads, so I assume they are set up at the same distance from the film plane and with the same threading etc.
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Old 06-05-2019   #2
Malcolm M
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Here’s half an answer to your question. The focussing mount on my Hektor measures 92.87 mm flange-to-flange at infinity, 99.31 mm at 10 ft and 107.48 mm at 5 ft, with a 317˚ rotation. If anyone can provide equivalent measurements for a 13.5 cm Elmar, you’ll have a complete answer.
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