Aperature return spring in zoom

[tbosley]

Advertisement (gone after registration)

I was wondering if anyone had a reference for lens repair on specifically a non-standard Leica zoom? I have a Leica R 28-70mm 3.5/5.6 zoom that is manufactured in Japan, so I assume its one of the Sigma designations.

 

I had to work on the mount and have a spring that is screwed only at one end. I can not figure out where the other end re-attaches, but think it may be for tension to the aperature tab.

 

It is the later design with the FL imprinted on side and works fine otherwise.

 

thanks,

[menos I M6]

You might want to post this query on the RFF in the "mad scientist section" along with some good photos of the parts, asking for help - some great technicians seem to have an answer on such issues there ;-)