259mm Fujinon SF --- Did Any Come In Copal 3S Shutter ?

I ordered a retaining ring for a Copal #3 shutter for a lens that won't be here for 2-4 weeks. I tried it on a 250mm Fujinon SF that's mounted in a Copal shutter not marked #3 or #3s. The ring is a bit too large. This would make sense if the Fujinon is mounted in a 3s shutter but, AFAIK, the Fujinon was never mounted in a 3s shutter. Am I wrong?

Currently, I don't know if I should contact the seller.

Read the fifth post.
(there was a url link here which no longer exists)

Thanks, Alan!! That's precisely the information I needed. The published Fujinon specs indicate the 250 SF is in a #3 with no mention of #3s. This ring should fit the #3 soon to arrive here.

You are very welcome. I'm glad that I could help.