Want to Buy WTB: DESPERATELY Seiko #1 Shutter Retaining Ring

Trader history for aldus_manutius (0)

aldus_manutius

Member
Joined
Nov 11, 2004
Messages
27
Location
Saint-Etienne, France
Format
Hybrid
I am in search of a retaining ring for a Seiko #1 shutter (marked "LS16" on the shutter) — it's for a Fujonon WS 180 ƒ/5.6 lens... supposedly this is the same size as a Copal #1, but it clearly isn't and the retaining ring I ordered is too small.

So if anyone has an extra one floating around or a non-functional Seiko LS16 Shutter, I would love to negotiate with you. Shipping would be to Leipzig, Germany.

Thanks!
 

reddesert

Member
Joined
Jul 22, 2019
Messages
2,467
Location
SAZ
Format
Hybrid
I have a Fujinon lens in a Seiko #1 shutter that had no retaining ring. What I found is that the shutter is the same outer size as a Copal #1, but the mounting thread is larger. On my shutter, the mount thread is 46mm x 0.75mm pitch. For a Copal #1, it's 39 x 0.75mm.

You can try getting someone to make you a retaining ring. Or, if your shutter has a 46mm thread like mine, that's the same thread as a 46mm filter. I got a 49->46mm step down ring (easy to find) and it screws right on. You may need to do some filing on it to clear the lens body.
 
OP
OP

aldus_manutius

Member
Joined
Nov 11, 2004
Messages
27
Location
Saint-Etienne, France
Format
Hybrid

Oh, how bloody brilliant! Thanks so much! I haven't found any machine shops here in Leipzig and my German hasn't come back to me well enough to investigate that, but this is a VERY simple solution!

Again, thanks!
 
OP
OP

aldus_manutius

Member
Joined
Nov 11, 2004
Messages
27
Location
Saint-Etienne, France
Format
Hybrid
You must log in or register to reply here.
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…