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  1. #31
    Join Date
    Dec 2006
    Location
    Guelph, Ontario
    Posts
    1,903
    I prefer screw drive just for the fact that you know how fast it is compared to the silent USM/SSM.
    Man I miss the sound of my 28-135mm!
    And I agree that since it is more mechanical in nature, it will probably outlast USM/SSM.
    Canon EOS 7D

    flickr
    FLUIDR

  2. #32
    Join Date
    Dec 2007
    Posts
    1,760
    manual focus is pretty quiet

  3. #33
    Join Date
    Nov 2008
    Location
    Monmouthshire, UK
    Posts
    2,152
    But tricky with a long AF lens.

  4. #34
    Join Date
    Feb 2006
    Location
    Des Plaines, IL
    Posts
    9,559

    Red face The zooms ...

    Okay ... it has taken a couple years to acquire these, but here they are ..



    Ten zooms (from back to front & left to right):

    70-400 f/4-5.6 G SSM (54 oz)
    17-50 f/2.8 Di-II
    80-400 f/4.5-5.6 (AT-X 840) (32 oz)
    28-75 f/2.8 Di
    200-500 f/5-6.3 Di
    24-70 f/2.8 DG HSM
    70-200 f/2.8 Di
    12-24 f/4-5.6 DG
    17-35 f/2.8-4 Di
    10-20 f/4.5-5.6 DC

    What's it all mean, Don?

    It means ... "Here's lookin' at you, kid."

    Anyway, I grouped them together so you could kind of get a relative size idea of them fully extend with lens shields. You can easily see the major size difference between the Tokina AT-X 840 and the SONY 70-400mm f/4-5.6 G SSM. The Tokina is definitely the one to backpack, when you do the trail.
    Last edited by DonSchap; 07-17-2010 at 09:32 PM.
    Don Schap - BFA, Digital Photography
    A Photographer Is Forever
    Look, I did not create the optical laws of the Universe ... I simply learned to deal with them.
    Remember: It is usually the GLASS, not the camera (except for moving to Full Frame), that gives you the most improvement in your photography.

    flickr & Sdi

  5. #35
    Join Date
    Feb 2006
    Location
    Des Plaines, IL
    Posts
    9,559

    Red face I must admit ...

    There has been a heck of an exchange going on over at the AlphaMountWorld site, concerning the 70-300 G SSM vs the 70-400 G SSM. The weird part: the 70-300 G SSM kind of got lost in the shuffle.

    Interesting for many reasons ...
    Last edited by DonSchap; 07-19-2010 at 09:25 PM.
    Don Schap - BFA, Digital Photography
    A Photographer Is Forever
    Look, I did not create the optical laws of the Universe ... I simply learned to deal with them.
    Remember: It is usually the GLASS, not the camera (except for moving to Full Frame), that gives you the most improvement in your photography.

    flickr & Sdi

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