anyone who owns the Schneider 110mm XL, must have noticed how close a filter com es to the optic. actually, it is so close, that I haven't been placing any filte r on, as the filter thread length may allow the filter to rotate on the glass. i t is just too close to call, so I bought step-up rings. after my bout with paran oia, I was down at the pro photo store and heard some discussion regarding custo mers who had not noticed this, and scored the glass on the lens as the filter ro tated against it. how do others deal with this, or is the clearance greater than it looks? it is just too easy to hit the glass, without something protecting it . been living dangerously, for the sake of optical clarity, but know my time is limited before some disaster befalls me.
have been looking at the 150mm XL, and wondering if the same concern exists.
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