Sigma or Canon 55-200mm?

Discussion in 'Canon' started by Nicholas Wittebol, Apr 28, 2005.

  1. Just wondering if anyone has any opinion on which is better...the Canon
    is slightly more expensive, but not even worth considering the price
    difference. I'm looking for a quality difference here.

    Thanks in advance,

    P.S. I've looked at
    Nicholas Wittebol, Apr 28, 2005
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  2. Nicholas Wittebol

    rbehunin Guest

    Hi Nicholas,

    Some people have reported problems using the sigma lenses on the EOS
    series cameras (Digital Rebel, 300D, etc). You might do a search on
    Google about this and see what it turns up.

    In a nutshell what has been posted = There were some posts to the
    effect that Canon had the Electronic Lens mount as a trade secret, or
    patent or something like that and would not release it to Sigma. Sigma
    had to reverse engineer the Electronic Lens mount, and the lens did not
    always work.

    I do not have a Sigma lens, so I do not know first hand. I have the
    kit lens, and a 70-300 telephoto zoom lens. If I need anything with a
    wider angle then the kit lens (18mm) - I shoot with a medium format
    camera. I have a fisheye lens for a keiv 88. However, the keiv 88 is
    cumbersome to use...

    rbehunin, Apr 28, 2005
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  3. Cool, I wasn't aware of those problems...looks like it might only be a
    concern if you are buying used or old lenses. But I will certainly keep
    it in mind. Any idea of which lense typically has the fastest or best
    autofocus? (Not necessarily this lens, but in general)

    Thanks again
    Nicholas Wittebol, Apr 28, 2005
  4. Nicholas Wittebol

    Todd H. Guest

    That is correct. It's not a concern really for your use of a new lens
    on your current model camera. Keep in mind though that in the future,
    Canon might rev the electronics and make the Sigma not compatible with
    a future canon camera. I find myself sitting on $1000 worth of Sigma
    f/2.8 APO lenses bought in 93 that I was sorely disappointed to find
    that I cannot use on my 300D in any mode other than Aperture priority
    set to f/2.8. :) Err 99 flashes if any other aperture is tried or
    attempted to be set by the camera. Newer Sigma lense post Elan 7 I
    believe all work fine though.

    Even so, your question is sure to spark debate because it seems to be
    anathema to suggest that a Sigma lens might possibly be superior to a
    manufacturer's lens in this newsgroup. :) But it is a good question.
    I'm just not terribly sure how likely you are to get an unbiased
    reasonable opinion out of this collection of folks when you mentioned
    the "S" word.

    If in doubt though, and the cost is similar, my eperience above would
    push you in the direction of the Canon lens with assurance of future
    compatibility and protecting your investment.

    There are lens review sites though that do a lot of aberration and
    color and sharpness tests and such. I don't have them off hand, but
    they're out there. A search of this newsgroup in
    for lens reviews of something might yield fruit as they've been
    mentioned recently.

    Best Regards,
    Todd H., Apr 28, 2005
  5. Nicholas Wittebol

    rbehunin Guest

    When I had a Canon T-70, I did have a couple of Sigma Lenses. The
    image quality was fine. However, the durablity... well, they were not
    as durable as the Canon lenses. They wore out over time. The wide
    angle zoom lens I had fell apart after a few years of moderate use.

    So, I guess you get what you pay for.

    rbehunin, Apr 28, 2005
  6. From what I have read before, it's actually the other way round: Sigma was
    too cheap to buy or licence Canon's lens interface technology and tried to
    reverse engineer it, but it didn't always work. Some other lens
    manufacturers did licence the technologu from Canon and don't have that

    But this is probably not the case any more as I am pretty sure that Sigma's
    HSM lenses use licenced EOS interface technology.


    Dragan Cvetkovic,

    To be or not to be is true. G. Boole No it isn't. L. E. J. Brouwer

    !!! Sender/From address is bogus. Use reply-to one !!!
    Dragan Cvetkovic, Apr 28, 2005
  7. Nicholas Wittebol

    rbehunin Guest

    It was something like that. I just remembered reading something about
    Sigma reverse engineering the Canon EOS lens mount, and it doesn't
    always work.

    I didn't remember the details. I had enough experience with reverse
    engineering projects that didn't work... that alone is enough to scare
    me away from sigma.

    rbehunin, Apr 28, 2005
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