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Thread: Mamiya Lens MTF

  1. #1
    Member marktomaras's Avatar
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    Mamiya Lens MTF

    Hello All, Does anyone know where one can find proper lens data sheets on Mamiya 645 AF lenses (or any Mamiya lenses for that matter!)?

    I recently switched to Phase One DF+ from the Hasselblad V System. There is a very useful site called Hasselblad Historical that publishes the original Zeiss data sheets for nearly every legacy lens ever made for Hasselblad! And then of course Hasselblad also publishes the data sheets for the new lenses. This is very valuable info when doing research.

    I would love to be able to look at the data sheets with MTF, distortion & vignetting charts, as well as the other specs on the lenses. I know there are lists of Mamiya 645AF Lenses floating around here on GetDPI that give descriptions and reviews, and those are useful, but the real data would be great to have access to.

    Is thee any info? If there is not a proper repository for them, I am willing to make one available to the public, but we need to gather the data sheets first!

    I have one, modern, Schneider LS lens for my DF+ but I also have a tech camera, and that will be the consumer of the lens budget for a while, so I am interested in playing around with non-curet lenses. The 645AF (non-d versions) are the logical first step, but I am even interested in the pre-AF designs.

    Well, any help on this project would be greatly appreciated! Please post any links or data sheets you have.

    thanks!
    Mark

  2. #2
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    Re: Mamiya Lens MTF

    How about this one:
    http://www.mamiya.nl/client/mamiya/u...enseschart.pdf

    It seems to me that Mamiya / Schneider LS lenses are trade secrets and no data is released to the public.

  3. #3
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    Re: Mamiya Lens MTF

    Frank Doorhoofs site used to have the ONLY real MTF charts on Mamiya RZ lenses but they are now gone.
    http://www.doorhof.nl/forum/index.ph...15138#msg15138

  4. #4
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    Re: Mamiya Lens MTF

    For the focal plane shutter lenses for the DF+ camera, you can download a very basic one page technical info from the PhaseOne site and it includes MTF (full open and f/8), distortion and vignetting.

    For the Schneider-Kreuznach lenses for the DF+ camera, I found this today:
    https://captureintegration.com/schne...se-one-mamiya/.

    For the technical lenses from Schneider-Kreuznach or Rodenstock, you'll find data on their web sites.

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