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Thread: AF troubles with 18-135

  1. #1
    Member Armanius's Avatar
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    AF troubles with 18-135

    Has anyone encountered AF problems with the 18-135? I'm in the Vegas airport now with very good lighting. The lens AF perfectly at 18 and 135. In between the widest and longest, it refuses to AF from time to time. Haven't totally pin pointed the situation in which it refuses to AF. I know for sure that it only occurs between the widest and longest focal lengths. And perhaps while the focus point is on glass surfaces.

    If I use contrast detect in live view, I don't have any problems.

    Anyone encounter this situation with their 18-135? I put the FA35 on my K5, and don't have any problems at all.

    Help!!

    Thanks.
    Armanius
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    Senior Member JMaher's Avatar
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    Re: AF troubles with 18-135

    No problems with mine.

    Jim

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    Re: AF troubles with 18-135

    no problems here either.

    Just this guy you know

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    Re: AF troubles with 18-135

    Try little AF adjustment +2 , 3 or even 5

    Lee

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    Re: AF troubles with 18-135

    If it's new and you ain't happy send it back. My modus operandi these days.
    Especially as a couple have people above aren't having similar issues.
    David

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    Member Armanius's Avatar
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    Re: AF troubles with 18-135

    Lee-

    The lens just refuses to auto focus. It's not that the auto focus is off.

    Definitely returning the lens.
    Armanius
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    Member Armanius's Avatar
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    Re: AF troubles with 18-135

    FYI, I returned it. Too much of a hassle trying to get it fixed. So weird that I couldn't AF sometimes unless the lens was at 18mm or 135mm. Anything in between would not auto focus.
    Armanius
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    Re: AF troubles with 18-135

    Quote Originally Posted by Armanius View Post
    FYI, I returned it. Too much of a hassle trying to get it fixed. So weird that I couldn't AF sometimes unless the lens was at 18mm or 135mm. Anything in between would not auto focus.
    I'm sorry about your lens not working properly.
    Will you replace it with another 18-135 ?

    Kind regards.
    Bart ...

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