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Thread: Sigma 18-50mm at f2.8, share your pics anyone?

  1. #1
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    Default Sigma 18-50mm at f2.8, share your pics anyone?

    Just interested to know how soft or sharp this lens can get when used wide open at f2.8. Any one use before can comment, or better yet post some pics taken at f2.8? Thanks.

  2. #2

    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    All shot on D2X. Full frame resized and sharpened.

    Sigma 18-50/2.8 @ 18/2.8


    Sigma 18-50/2.8 @ 18/5.6


    Nikon 18-200/3.5-5.6 @ 18/4.0 (for reference)
    Last edited by lsisaxon; 11th May 2006 at 12:12 PM.

  3. #3

    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    All shot on D2X (12mp). Center 100% crop (no sharpen).

    Sigma 18-50/2.8 @ 18/2.8


    Sigma 18-50/2.8 @ 18/5.6


    Nikon 18-200/3.5-5.6 @ 18/4.0 (for reference)
    Last edited by lsisaxon; 11th May 2006 at 12:11 PM.

  4. #4

    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    All shot on D2X (12mp). Right side 100% crop (no sharpen)

    Sigma 18-50/2.8 @ 18/2.8


    Sigma 18-50/2.8 @ 18/5.6


    Nikon 18-200/3.5-5.6 @ 18/4.0 (for reference)
    Last edited by lsisaxon; 11th May 2006 at 12:10 PM.

  5. #5

    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    All shot on D2X (12mp). Bottom-right 100% crop (no sharpen)

    Sigma 18-50/2.8 @ 18/2.8


    Sigma 18-50/2.8 @ 18/5.6


    Nikon 18-200/3.5-5.6 @ 18/4.0 (for reference)
    Last edited by lsisaxon; 11th May 2006 at 12:10 PM.

  6. #6

    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    I like what Nikon 18 - 200 mm is producing.

  7. #7

    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    Quote Originally Posted by xotic
    I like what Nikon 18 - 200 mm is producing.
    Why do I keep raving about that lens?

  8. #8
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    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    the nikon seems exceptionally bright compared to the rest. Its also interesting how the moon at f2.8 is bigger than the rest.

  9. #9

    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    Quote Originally Posted by szekiat
    the nikon seems exceptionally bright compared to the rest. Its also interesting how the moon at f2.8 is bigger than the rest.
    It is due to blooming (the moon was really bright) plus the coma of the lens wasn't corrected that well. Don't judge the exposures with these shots because the sun was setting really fast and the sky darkens very quickly. I shot with the 18-200 first which is why it appears brighter. Everything is shot on A mode with matrix metering.
    Last edited by lsisaxon; 17th February 2006 at 05:04 PM.

  10. #10
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    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    Wow, thanks for the pics Isisaxon, this is exactly what i wanted to see.

  11. #11

    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    nice plots...

    I think a few more people will join the already LONG queue for the 18-200 VR...

  12. #12

    Default Re: Sigma 18-50mm at f2.8, share your pics anyone?

    Quote Originally Posted by wind30
    nice plots...

    I think a few more people will join the already LONG queue for the 18-200 VR...
    Plots?

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