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This mailinglist archive is frozen since May 2001, i.e. it will stay online but will not be updated.
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T3D Re: Matched lenses
Although you may get matched focal lengths be careful about
concentricity. I have experienced image shift as the lens was focussed
(front element or more rotated). Even consistently manufactured lenses,
if an element is consistently eccentric, the image will shift around if
that element is rotated.
Gregg
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