Compur size"0" or"00" shutter?

[Francisco Diaz]

Friends,

I have a Schneider Symmar 105mm f/5.6 lens (convertible to a 185mm f/12) mounted on a Synchro-Compur shutter. Based on the lens description, could someone plea se identify whether it is a size "0" or "00" shutter.

Thanks in advance,

Frank

[Robert White]

Dear Francisco, If you measure the locking ring thread diameter of a 0 is 1.36 inches and the 00 is 1.046 inches ....... the 00 is very delicate so treat with care. Yours Robert