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Manual Focus Lenses Forum

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.
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Fixing the Meyer-Optik Görlitz Domiplan 50 f/2.8
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I got said lens with a Praktica LB for 15 euro. I really like the looks of this lens: small, light, zebra finish. It has the Royal Screw mount but when I wanted to screw it on my Pentax (with adapter), I noticed a problem with the diaphragm pin. I wanted to fix it by using super glue (putting a small piece of hard plastic on top), but the pin always loosens up. Do I have to open the lens and fix the pin somewhere inside (I never opened a lens before) or should I get stronger super glue? Attila had a similar problem it seems.


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If you squeeze some glue out onto a piece of card, use something to wipe some glue round the base of the pin, push in with a cheap screwdriver and hold. I've just got the same lens - and this has worked for me.


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I just jam the pin on mine with a little piece split from a matchstick and wedged down beside the pin. Easily reversible too.