Lilserenity
Well-known
I have been having problems with my Voigtlander Color Skopar 35mm f/2.5 lens with focussing tab that broke off. I did at first think I had fixed it with Araldite but then it broke off again, I reattached it, and it failed again.
I fatefully decited to take it apart to try and attach the tab back but from the inside with Araldite. A fine principal.
However not only could I get the focussing ring off the lens barrel itself, but in trying to put back together I basically made a mess of it so that apparently a minimum and infinity distances it didn't appear to be focussed correctly. Certainly at infinity it was off for objects in the distance.
So over the past few days I have tried to get it to work again, I think I finally cracked it so that infinity appears to be focussed at infinity and the min. focus distance seems to equal (at a guess) the minimum focus distance in the rangefinder. (I'm using a Leica M2 and haven't touched its rangefinder as I know it's fine)
My question is, apart from shooting a roll of film, is there any other way of checking the lens is correctly focussed at infinity besides what I have already done?
I expect the answer to be: you need to shoot a test roll 🙂
If so I'll do so, but I have purchased a brand new Ultron 35mm from Robert White so I anticipate selling the Skopar on the understanding to the buyer that my focussing tab repair may not hold and they made need to get it fixed properly. I basically want to make sure that the lens is otherwise working fine again bar the likelihood of the foucussing tab coming away again... 🙁 (It was the first case Robert White have ever heard of as well apparently)
I fatefully decited to take it apart to try and attach the tab back but from the inside with Araldite. A fine principal.
However not only could I get the focussing ring off the lens barrel itself, but in trying to put back together I basically made a mess of it so that apparently a minimum and infinity distances it didn't appear to be focussed correctly. Certainly at infinity it was off for objects in the distance.
So over the past few days I have tried to get it to work again, I think I finally cracked it so that infinity appears to be focussed at infinity and the min. focus distance seems to equal (at a guess) the minimum focus distance in the rangefinder. (I'm using a Leica M2 and haven't touched its rangefinder as I know it's fine)
My question is, apart from shooting a roll of film, is there any other way of checking the lens is correctly focussed at infinity besides what I have already done?
I expect the answer to be: you need to shoot a test roll 🙂
If so I'll do so, but I have purchased a brand new Ultron 35mm from Robert White so I anticipate selling the Skopar on the understanding to the buyer that my focussing tab repair may not hold and they made need to get it fixed properly. I basically want to make sure that the lens is otherwise working fine again bar the likelihood of the foucussing tab coming away again... 🙁 (It was the first case Robert White have ever heard of as well apparently)
