Yashica/Contax lenses on dlsr body

Discussion in 'Digital Photography' started by Peter Huebner, Dec 29, 2009.

  1. My old Slr kit includes several yashica bodies as well as several of the
    wonderful Zeiss lenses with the yashica/contax bayonet plus a couple of
    yashica lenses that were not half bad in their own right.

    Now, I understand that one can get converter rings to fit these lenses
    to several dslr cameras - the Canon eos line being one of them.

    Has anyone here undertaken such an adaptation?

    One thing that I am not clear about is the AF. I understand that the
    diaphragm auto does not work through the adapter, so I have to set the
    camera to manual there (my preference any old how), but will autofocus
    still work? I simply do not know how the dlsr cameras handle that.

    And I am wondering also about conversion factors --- would the Zeiss
    200mm lens work as a 320mm on a canon eos (assuming a 1.6 conversion
    factor - I am not sure on this value either).

    I'd probably be eyeing the Canon 450D as a body for this project if it's
    feasible at all, not sure what Panasonic has to offer by comparison.

    any input greatly appreciated, tia -P.
    Peter Huebner, Dec 29, 2009
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  2. Peter Huebner

    Guest Guest

    using a converter ring is easy. you put the adapter on the camera and
    then the lens on the adapter.
    with rare exception, nothing works. you have a fully manual lens. the
    adapters are so that the lens mounts, not to translate the electronic
    signals. however, there is a nikon-canon adapter ring that supports
    some of the electronics in nikon lenses.
    all lenses are affected. any 200mm lens on a 1.6x canon body is
    effectively a 320mm field of view on a full frame body.
    4/3rds has a lot more options for using older lenses because the flange
    distance is shorter, but canon should work. however, you might want to
    consider just how effective this all will be, and whether getting new
    lenses is a better long term option.
    Guest, Dec 29, 2009
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