Creagerj
Incidental Artist
I got a helios 103 and alas it was made improperly. Its really to bad because it is nearly in perfect shape. What I was wondering is if anyone has any tips on making it work. It will sit in place it just won't lock.
P
pshinkaw
Guest
Sometimes the mounting lugs on EITHER the lens or the camera flange can be bent slightly to allow the lens to lock on. Check both first before trying anything. If your body will accept a Jupiter-8 but will not accept the Helios-103 then modify the Helios. You can bend the lugs up or down very slightly with a thin metal object like a Swiss Army knife blade or small screwdriver.
Let me emphasize SLIGHTLY. Too much enthusiasm can result in a seriously damaged lens mount.
-Paul
Let me emphasize SLIGHTLY. Too much enthusiasm can result in a seriously damaged lens mount.
-Paul
BJ Bignell
Je n'aurai plus peur
Hammer! Yes, you must use a hammer. 
Note: This post does not constitue sound advice, nor is it based on any actual experience. It just sounds like a good idea. YMMV.
Note: This post does not constitue sound advice, nor is it based on any actual experience. It just sounds like a good idea. YMMV.
Jocko
Off With The Pixies
Try holding down the infinity lock (the metal catch on the focussing wheel) whilst attaching the lens. That often does the trick.
Ian
Ian