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Thread: Nikon 400mm f5.6 ED IF AIS lens focus

  1. #1
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    Nikon 400mm f5.6 ED IF AIS lens focus

    I just purchased this manual focus used from a reputable dealer, so I can return it. The lens is a beauty-light weight small, etc. The focus ring helicoid turns freely---in fact TOO freely. It does not have that "feel" that gives one confidence it will not move accidently. Is this normal for this lens? If anyone has one can you please check it?
    Thanks
    Dave in NJ

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    Re: Nikon 400mm f5.6 ED IF AIS lens focus

    I had this lens when it came out. It uses internal focusing, so the focus ring is only moving several internal lens elements and is very light. I never had the focus change on its own.

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    Re: Nikon 400mm f5.6 ED IF AIS lens focus

    Quote Originally Posted by rclewis View Post
    I had this lens when it came out. It uses internal focusing, so the focus ring is only moving several internal lens elements and is very light. I never had the focus change on its own.
    Thanks. I really like this lens, it is so light and small for a 400. The focus was so light, i assumed possibly it was not correct. I have not trid it yet with a tripod. It is reported to be very sharp.
    Thanks
    Dave

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    Re: Nikon 400mm f5.6 ED IF AIS lens focus

    My Nikon 400mm has a very "light touch" focus ring but the focus ring is not loose. I used the lens often in the film days but have not really tried it on hi res digital. Please let us know your experiences with the lens.

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