Strange COPAL 3

[Bob Salomon]

Thank you for the suggestion. That would be the easiest way. However, it is not helping.

Why not? You will have to pay more to get your lens properly mounted into it and then figure out the aperture scales for your lens.

[Oren Grad]

I've deleted the entire pi**ing contest about thread specifications, with apologies for not having been able to get to it sooner.

[Tin Can]

Let's try this

I have a few Copal 3 in Southern IL

Come over

[Oren Grad]

Getting back to the OP's question: I have a shutter exactly like it, including the same aperture scale. The lens that's mounted in it is a 25cm f/4.7 Fujinar-SC. The threaded ring that holds the front cell sure looks like an insert on mine, though I can't budge it and don't want to risk damaging the shutter by trying anything drastic. You might try consulting a repair technician who's experienced with LF lens shutters - perhaps the ring can in fact be removed without doing damage to the shutter, though there would still be the question of whether the shutter-without-ring will be a proper fit to your 300 Symmar cells.

[JimL]

It's a Copal 3S - I also have one (slightly different aperture) and it houses my Graphic Kowa 240...