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Thread: DA* vs Sigma HSM

  1. #1
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    Default DA* vs Sigma HSM

    I have DA*16-50mm and a borrowed Sigma APO 50-500mm with HSM.

    I was told that Sigma lens with HSM is longer in the market than Pentax which gives them an edge.

    However, when I used both lens on my K20D, the DA* noise level is much quieter.

    Was I making a wrong comparison with a larger lens, since larger lens requires bigger motor?

  2. #2

    Default Re: DA* vs Sigma HSM

    You sure the 50-500 you got has HSM? Sigma HSM is only available for Canon/Nikon users at the moment, some new HSM Sigma lenses in Penta K mount haven't been released yet.
    Last edited by fengwei; 3rd October 2008 at 05:03 PM.

  3. #3
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    Default Re: DA* vs Sigma HSM

    There is no HSM mark on the box and the lens.

    However, the instruction manual stated this lens ferature a built-in HSM (for Sigma AF, Canon AF & Nikon AF). For Sony AF, Pentax AF, select camera & lens to AF, but no mention of HSM.

    Check Sigma home page, the barcode for Pentax AF is 00-85126-73645-3 which correspond with the box.
    http://www.sigma-photo.co.jp/english...0_500_4_63.htm

    Called Sigma Spore to enquire how to tell if it is HSM since there are 2 versions, they also not sure and have to check with Japan.

    p/s: Sigma confirmed HSM is not availbale for Pentax. This is obvious the word HSM is not presence on the lens.
    Last edited by Ben Loke; 3rd October 2008 at 04:10 PM.

  4. #4
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    Default Re: DA* vs Sigma HSM

    I think the word is that HSM will come in Pentax, but not for now.
    Kind regards
    Sune

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