Canon 100-300 fd zoom infinity focus : LUSENET : Canon FD : One Thread

I recently purchased a Canon 100-300 fd zoom. The overall condition of the lens is 9++. The only problem is it won't focus at infinity. Is there an ajustment I can do myself without taking it to a camera repair shop?

Thanks, Jim

-- James Cunningham (, February 23, 2001



Some of Canon's long lenses and zooms don't stop at infinity, they focus a bit past infinity. These lenses will have an L shaped infinity witness mark. This supposedly allows for expansion and contraction in differing temperature conditions. My 80 - 200 SSC lens operates in this fashion.

If your lens focuses short of infinity, it's time for a visit to the repairman.


-- Bill Salati (, February 24, 2001.

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