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1:1 with legacy lens macro

Discussion in 'Adapted Lenses' started by flipmack, Sep 12, 2013.

  1. flipmack

    flipmack Mu-43 Veteran

    252
    Mar 23, 2012
    irvine, CA
    I just picked up a Vivitar 55/2.8 macro (FD mount) and I have a question.

    If the lens is set to 1:1 is for the FD mount (full-frame 35mm), and the m4/3 sensor is technically half of full-frame, then when I use an adapted legacy macro lens set to 1:1 on my m4/3 camera, is it really 1:0.5?

    It *seems* (haven't done actual comparison yet) that I'm getting A LOT closer with the Vivitar 55/2.8 macro at 1:1 compared to my ZD 35/3.5 macro, which is a native 1:1-capable lens for 4/3.
     
  2. caspert79

    caspert79 Mu-43 Regular

    34
    Sep 4, 2013
    Netherlands
    Magnification should be the same. The image might look a bit different because of the focal length.
     
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  3. flipmack

    flipmack Mu-43 Veteran

    252
    Mar 23, 2012
    irvine, CA
    bingo! I forgot about the focal length difference. I've been using the ZD 35/3.5 macro on my 4/3 kit for years and I'm accustomed to that focal length.