ring wrench for fed and zorki eyepiece

[YEN]

Hi,
I want to take off eyepieces and rangefinder windows for several different fed and zorki models.
I've tried rubber mat and Zorkikat style wrench without success. So I decided to buy one from ebay.

There're 3 different sizes: 10mm 10.5mm 11mm. Which one should I buy?

Thanks!

 

[wolves3012]

I've just measured the eyepiece bezels on an early FED and two Zorkis, they ranged between 9.86mm and 10.15mm. I'd suggest you need the 10mm wrench.

 

[YEN]

Thanks for the reply.
I measured one of my Zorki -1:
Rangefinder windows: 9.90 9.95
Eyepieces: both 10.40
I think I'll get 10mm wrench first.

 

[newspaperguy]

A short Le gth of soft soder wrapped Round the bezel and gripped with pliers always worked for me.

 

[YEN]

Thanks, Rick. I've tried soft solder method without success. The eyepieces are too tight this time.

However I got 10mm and 11mm wrench. 11mm is designed for Leica III, too big for Zorki.

The 10mm one works both with rangefinder window and eyepieces. It's a little bit too small for the eyepieces, a little bit too big for the rangefinder window. But it works.

I'd say a 10.5mm one will work better with eyepieces.