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Thread: Sony A900 w/Zeiss vs ? - A Challenge

  1. #51
    Senior Member edwardkaraa's Avatar
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    Re: Sony A900 w/Zeiss vs ? - A Challenge

    Quote Originally Posted by Greg Seitz View Post
    It may be a curvature of field thing as my gut tells me the Zeiss curves inward at the edges and the Tamron seems to curve outward.

    Nope, the Zeiss curvature is outwards as well.
    M262 ZM 25/2.8 35/1.4 50/2 85/2

  2. #52
    Senior Member Braeside's Avatar
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    Re: Sony A900 w/Zeiss vs ? - A Challenge

    My first Sony CZ24-70mm was very poor at 70mm f/2.8, obviously sharper at one side of the frame. I rejected it and the replacement is fantastic. So it appears that many lens manufacturers have their quality problems and it can be a bit of a lottery.

    I now try to purchase from places that will let you return a lens if you think it is poor.
    David Anderson

  3. #53
    Senior Member Braeside's Avatar
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    Re: Sony A900 w/Zeiss vs ? - A Challenge

    For some reason the first half of my last post was accidentally removed, so here it is again.

    My Tamron experience has been mixed.

    1. KM28-75mm on APS-C - returned for autofocus fix - better but still soft at 2.8

    2. Tamron 28-75mm on A900 - OK at f/4, but again 2.8 mushy.

    3. Tamron 17-35mm on A900 OK well stopped down, corners never perfect.

    Greg, you got a good one!
    David Anderson

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