Nikon D50 and older Nikon lenses

Discussion in 'Nikon' started by Fred Anonymous, Jul 4, 2006.

  1. Hello folks.

    I have a friend who had a Nikon F65 and a couple of lenses for it.

    She has just bought a Nikon D50 and finds that these older lenses will not
    autofocus on the D50 body.

    I don't use Nikon so here is my guess:

    The F65 body uses mechanical coupling between body and lens to focus the
    lens.
    The D50 uses electrical coupling to focus the lens (surface wave motor) and
    does not have any
    mechanical focusing capability. This means it cannot focus the older,
    mechanically focused lenses.

    Anyone confirm or correct this guess, please.

    Thanks,

    Ian.
     
    Fred Anonymous, Jul 4, 2006
    #1
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  2. Fred Anonymous

    Bill Guest

    Most if not all Nikon bodies, including the D50, have a mechanical
    "screw" drive for lenses that lack internal motors, such as most G and D
    type lenses.
    My guess is the lenses your friend has are older manual focus lenses,
    probably AI or AI-S, and it has nothing to do with the body. Note that
    these lenses also do not meter on the D50 body.
     
    Bill, Jul 4, 2006
    #2
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  3. Fred Anonymous

    Sheldon Guest

    You can go to Nikon's web sight to double check what lenses will work on a
    D50, but virtually all AI and newer lenses will "fit' any Nikon DSLR. And
    that included older lenses that have been converted to AI. Now, these older
    lenses will work, but only in manual mode and will not couple to the meter
    or autofocus systems. If you are using an AF lens, make sure the M/A focus
    switch is in the A mode. You can see the drive slightly prodruding from the
    mount.

    According to this, from the Nikon Web site, it should work with all AF
    lenses:

    High-Quality Nikkor Optics including NEW Compact and Lightweight AF-S DX
    Zoom-Nikkor 18-55mm f/3.5-5.6G ED Lens: The new D50 offers seamless
    compatibility with Nikon's extensive family of high-performance AF Nikkor
    lenses, as well as the expanding family of DX Nikkor lenses, providing
    superb color reproduction, razor-sharp image clarity and fast and accurate
    autofocus performance.
     
    Sheldon, Jul 5, 2006
    #3
  4. Fred Anonymous

    Tom Guest

    Hi Fred, all,
    http://www.aiconversions.com/compatibilitytable.htm
     
    Tom, Jul 5, 2006
    #4
  5. Fred Anonymous

    DoN. Nichols Guest

    If the lens is a *Nikon* autofocus lens, it should work fine on
    the D50.

    Note that there is a switch on the camera *body* to turn off
    autofocus, as well as one on the kit lenses. On the D50, you will find
    the switch just below the lens mount release button.

    Note my stressing of "Nikon autofocus lens" above. This is
    because at least one of the third party makers of lenses did not sign a
    license agreement with Nikon to get the details of how the lens protocol
    works, but instead tried to reverse engineer it -- by observing the
    communications between the camera and the lens. This means that later
    cameras, which use more of the protocol, will not communicate with the
    lens until its firmware has been upgraded. If she got the third-party
    lens, it will have to go back to the manufacturer to get a firmware
    upgrade.

    You didn't say which lenses, or who made them, and in this case
    it *does* make a difference.

    I don't remember which third-party manufacturer it was who did
    not get the license, but I'm sure that someone else will remember and
    post it.
    Good Luck,
    DoN.
     
    DoN. Nichols, Jul 5, 2006
    #5
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