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Replacement for my FT 12-60 SWD

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  • #16
    Re: Replacement for my FT 12-60 SWD

    Originally posted by daveben View Post
    The clue (in my case) that it was the flexi-strip at fault was that the aperture worked correctly at short focal lengths but wouldn't operate at long focal lengths. This is because when the lens is extended, the flexi-strip is straightened out and any breaks in it become non-conductive. When the lens is wound back in, the breaks re-connect and it works again. If you have these symptoms (or indeed it was like this when it first went faulty), then chances are it is a broken strip.
    This is exactly the same problem as my 12-60