Quote Originally Posted by SFC View Post
I had and sold an Elmar-M 2.8. It was a decent lens but one thing drove me nuts: When extended, the focus was quite stiff. Something about the extension/locking that caused binding. I would make sure the one you're looking at doesn't have this. Other than that, a decent performer with very little distortion.
The black Elmar 50 ƒ/2.8 is pretty recent to have gummed helical lubricants etc. etc.
Perhaps You are referring to the 50's vintage or frankensteined lens?
The extension/rotate/lock is supposed to be reasonably tight, its like that on all collapsible lenses M or LTM. The "tail" wings are adjustable with a tool.