Quote: A stiff arerture ring on a Summitar suggests that it needs a service
Agreed. Any decent dealer can arrange this. Some years ago I bought a 50mm Summarit from the late (and only partly lamented Jessops Classic). The lens was in beautiful condition but everything was a stiff as could be. So I took it to another store (Classic Camera - speaking of which, has this place ceased to be?) and it got sent off to Leica for a full work-out. Came back as good as new.
-------------------- Tim BSRIPN
You see something happening and you bang away at it. Either you get what you saw or you get something else--and whichever is better you print. - Garry Winogrand