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  1. #1
    Junior Member

    Nikon F4, F4, 50mm 1.8D,


    I have a question that has been bothering me these last few days regarding my Nikon F4 and a Nikon 50mm f1.8D lens that I have. I let my friend borrow the camera with the lens mounted to the camera, but with the camera off. She then began to turn the focusing ring. Would this damage the camera/lens in any way, even if the camera was switched off at the time? When I turned the ring (still mounted) after her to make sure it was okay, it turned but as if it had 'brakes on', ie it was harder to turn it than with it being off of the camera. Have I caused any damage? Many thanks in advance.


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  2. #2
    Senior Member
    Texas's Avatar

    Re: Nikon F4, F4, 50mm 1.8D,

    If I remember correctly, the F4 is screw drive autofocus (as is the 50 1.8D). Don't be turning the lens focus ring unless the camera itself is in Manual-Focus.

    Turning the lens focus ring is driving the camera's AF motor if the camera body is not set to Manual Focus. That is a bad thing to do.

    If it will still focus the lens in AF mode then everything is OK still.
    Last edited by Texas; 01-19-2019 at 10:45 PM.
    D750, D100, Nikon 1 J5
    (Once owned: EL, F2AS, D50, D90, D200, D300s, and D7100)

  3. #3
    Senior Member
    Bikerbrent's Avatar

    Re: Nikon F4, F4, 50mm 1.8D,

    Welcome aboard. Enjoy the ride.
    We look forward to seeing more posts and samples of your work.

    A little more resistance of the focus ring with the camera off is normal (you are manually turning the AF in the camera).
    Brent: Poway, CA
    D7200, D200, F100
    Tokina 12-24mm
    Nikon 18-200mm
    Tokina 28-70mm f2.6-2.8
    Nikon 80-200mm f2.8
    Sigma 150-600mm
    Nikon 50 AF f1.8
    Tokina 100mm f2.8 Macro
    Nikon SB800

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