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  1. #1
    Join Date
    Feb 2006
    Des Plaines, IL

    Question How about a low light solution that might be great?

    As we all know, fighting low light imaging is a science until itself.

    It appears that SONY may just release a CZ 24mm f/1.4, which would be one of the brightest and deepest DOFs at f/1.4 around. A terrific ‘low-light lens’, ditch the flash and this would be the one to have in your lens bag.

    How good is it?

    Compare these various lens DOF results* at 10 feet:

    CZ 24mm @ f/1.4 = 2.8 feet
    35mm G @ f/1.4 = 1.4 feet
    50mm @ f/1.4 = 0.65 feet
    CZ 85mm @ f/1.4 = 0.22 feet
    CZ 135mm @ f/1.8 = 0.11 feet

    How about 20 feet?

    CZ 24mm @ f/1.4 = 13.1 feet
    35mm G @ f/1.4 = 5.71 feet
    50mm @ f/1.4 = 2.75 feet
    CZ 85mm @ f/1.4 = 0.94 feet
    CZ 135mm @ f/1.8 = 0.37 feet

    Ask yourself, "What kind of focus that would be for the little one's recital?"

    * These measurements are only on the APS-C sensor DSLRs.
    Last edited by DonSchap; 05-03-2009 at 08:43 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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