Lens board Copal size for lens?

Candlejack

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Med. Format Pan

• Jan 19, 2022

• #1

Hello, I was wondering if anyone knew, or knew how how to find the copal size for a 85mm f3.5 Wollensak in a Alphax shutter? I also need to source a retaining ring for it.
Thanks!

 

Last edited: Jan 19, 2022

Marcelo Paniagua

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• Jan 19, 2022

• #2

I believe that lens fit into an Alphax 3 shutter. That has a size of 30mm/1.795 inch. I don't think there is a copal equivalent as far as I know.

Here some pages that may help


https://alphaxbetax.com/resources/

https://lensn2shutter.com/shutters.html


Wish you luck and please share if you find anything.

 

OP

OP

Candlejack

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Med. Format Pan

• Jan 19, 2022

• #3

Thank you! Much appreciated!

 

abruzzi

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• Jan 19, 2022

• #4

SK Grimes site has a page on measuring your shutter’s threads, which has come in handy, plus they can make you whatever you need if it’s an odd size.

https://skgrimes.com/services/how-to-measure-threads/

 

Marcelo Paniagua

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• Jan 19, 2022

• #5

Thanks abruzzi. Much appreciated.