Focus Ring Tension

Hi,

Just today I started noticing a phenomenon with my 35mm

Summicron ASPH that I've never experienced before. All of the

sudden, when I move the focus ring on the lens, I notice what

seems like a lot of tension making it harder to move. It's not

impossible or anything--it just doesn't have the same smooth

glide it did last time I used it (about a week ago). I know that this

can happen with older lenses (I have a previous generation

50mm Summicron that has a little bit of that), but I have only had

this lens since August, and the problem seems to have

happened out of the blue! Does anyone know what could have

caused this? Should I send this lens in for service? Is there a

quick fix--is there a fix at all? Any help you knowledgable people

could offer would be greatly appreciated!

<p>

Thanks much!

<p>

Buzz

I would try slipping a piece of paper between the optical unit (the

part with the glass that does not rotate but moves in and out as

you focus) and the focus mount (the part you move to focus).

Sometimes debris can accumulate in there. If that does not do

anything, I would send it in to be checked as internal screws may

have loosened or......

Thanks--that seems to have done the trick! I appreciate your

help...

<p>

Buzz