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  1. #1
    Join Date
    Jan 2005
    Posts
    16

    Sigma 10-20 problem or not????

    Hello,

    I bought the Sigma 10-20 F 3.5 before going on a cruise. Unfortunately I didn't have a chance to test it before the trip. Attached are two examples where there is extreme distortion. Shots taken without a person seem fine. Shots taken where the person was in the center of the frame seem fine. Both shots were taken at 17mm. I have a 16-85 Nikon, and have never had any issues at 16.

    Bottom line, do you think I have a defective lens, or is this what I have to expect from an extreme wide angle?

    Probably a stupid question, but is there any way to fix this post processing?

    I am about to head to Banff, and it really makes me think twice about using this lens with people and scenery.

    Thanks for any advice.

    Kcbryan
    Attached Images Attached Images   

  2. #2
    Join Date
    Jan 2005
    Posts
    16

    Addition

    Sorry the pics are so big. I guess I should have resized them. I should have mentioned that I was shooting with a Nikon D80.

    Thanks,

  3. #3
    Join Date
    Apr 2006
    Location
    Exeter, UK
    Posts
    883
    Those shots look fairly normal to me, though the scene doesn't really show distortion - try a brick wall to really see what's happening. The Sigma 10-20 f/3.5 actually has fairly low distortion for an ultrawide zoom, with minimum at around 15mm. There's a detailed analysis on the SLRgear review here.

    For comparison, the Nikon 16-85 has rather more at the wide end. See here.

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