Question about my lens...Copal 3, 3S or ?

[Craig Tuffin]

I just received a lens with an older copal 3 shutter without a retaining ring. I'm trying to find one but am unsure what size it would be. I tried one off my Nikkor W 240mm in a copal 3 and it was too large.

Do I need a copal 3S size or another? Any help is appreciated.

169353

[Craig Tuffin]

I just received a PM informing it requires a 3S retaining ring...cheers!

[Steve Goldstein]

That should be a Copal 3S shutter. The 305 and 360 I used to have were both in 3S, as is my 240mm. There's an eBay seller who offers retaining ring sets (spacer plus threaded ring), I bought a couple in July.

[Craig Tuffin]

Thanks Steve!


That should be a Copal 3S shutter. The 305 and 360 I used to have were both in 3S, as is my 240mm. There's an eBay seller who offers retaining ring sets (spacer plus threaded ring), I bought a couple in July.