Minolta 7D and Sigma Lens compatibility

Discussion in 'Minolta' started by tracymar55, May 9, 2005.

  1. tracymar55

    tracymar55 Guest

    I am considering going way over my budget and purchasing a KM7D for the
    figure skating photography I do......but it's absolutely essential that
    the camera be compatible with my Sigma 70-210/2.8 zoom lens. I've been
    researching this everywhere online with no results yet though I did
    email Sigma information (and haven't heard from them). Anyone have a KM
    Maxxum 7D with this lens who can respond?

    Apparently this Sigma lens which I bought three years ago was replaced
    with the 70-200 and I don't know if compatibility issues for the 70-200
    will be the same for the 210.

    Also if I had to get Sigma to replace the chip - would this necessarily
    interfere with the lens compatibility with my regular Minolta 7 SLR?
    I'd want to be able to use the lens for both cameras.

    THANKS in advance.

    tracymar55, May 9, 2005
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  2. tracymar55

    Jer Guest

    Take the lens with you when you visit your local camera store.
    Jer, May 9, 2005
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  3. Hi,
    I have both but did not try yet.

    I have used the 70-210/2.8 with my 600si without any prob, but compatibility
    with my 9xi was far from perfect.

    I will try with the 7D.
    Are there any compatibility issues between 70-200 and 7D ?

    I am daily using my Sigma 28-70/2.8 with my 7D, no problem so far.
    chip ?

    Kind regards,
    Stéphane Guillard, May 9, 2005
  4. tracymar55

    Alan Browne Guest

    No direct experience with that combo.

    I've seen the odd mention of compatibilty problems between the 7D and
    some Sigma lenses. I suggest you post the same message in the K-M SLR
    forum at http://forums.dpreview.com/forums/forum.asp?forum=1035 for
    which you will have to register with dpreview (no big deal). Likewise
    in the yahoo forum at http://groups.yahoo.com/group/Minolta/ .

    I would bet that if it works well with the 7, it will work fine with the 7D.

    Find a local store that has one in stock (or a local photog), drag your
    lens over and test it. Be sure to test it with AS off, and with AS on.

    I have the 7D, BTW, and it was an effortless transition from the Maxxum 9.

    Alan Browne, May 9, 2005
  5. Hi,
    Ok, replying to myself, I took time last week end to try the 70-210/2.8 with
    the 7D, no problem, works fine.

    Of course, the AF is not lightning fast, but it works.

    Kind regards,
    Stéphane Guillard, May 16, 2005
  6. tracymar55

    Alan Browne Guest

    Since Minolta's AF motor is in the body, the gear ratios and resistance
    in the lens are responsible for how fast or slow AF is achieved.

    The Maxxum 80-200 f/2.8 G autofocuses very fast on the Maxxum 9 and 7D.
    I'm sure there are faster, but end to end AF is about 1/4 second by my

    IAC, I usually manually focus, which is too 'quick and slick' on this
    lens. I'd rather a longer turn with more tactile resistance. (The 100
    f/2.8 macro is great in this respect).

    Alan Browne, May 16, 2005
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