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Thread: Testing my new Sigma 18-35mm f1.8

  1. #1

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    Dora B

    Testing my new Sigma 18-35mm f1.8

    Hello everyone,
    As promise, here are few shots at apt 1.8. The lens performed well in good light condition but at night I had this vignetting probably as all wide aperture lenses used with wide open apertures (??) . Overall I'm pleased , however the lens hood is mandatory to prevent glare and in low light is the vignetting that's curbing my enthusiasm.
    Please let me know what you think.

    Interior

    Testing my new Sigma 18-35mm f1.8

    Sunlight

    Testing my new Sigma 18-35mm f1.8

    Close-up (color)

    Testing my new Sigma 18-35mm f1.8

    Low light

    Testing my new Sigma 18-35mm f1.8


    Thanks for viewing

  2. #2
    Shadowman's Avatar
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    Re: Testing my new Sigma 18-35mm f1.8

    Worked very well for Sunlight.

  3. #3
    kdoc856's Avatar
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    Re: Testing my new Sigma 18-35mm f1.8

    Hi, Dora

    That vignetting just goes with the territory, and if you are otherwise happy with the results, look no further. I just shoot a little wider than needed, an crop the vignette.

  4. #4
    Digital's Avatar
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    Re: Testing my new Sigma 18-35mm f1.8

    Nice captures. The one of the doggy looks a little soft.



    Bruce

  5. #5

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    Andre Burger

    Re: Testing my new Sigma 18-35mm f1.8

    Hi Dora,
    Are you sure it is vignetting and not the lens hood? To me it looks to serious to be vignetting.

  6. #6
    tao2's Avatar
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    Robert (ah prefer Boab) Smith

    Re: Testing my new Sigma 18-35mm f1.8

    Quote Originally Posted by AB26 View Post
    Hi Dora,
    Are you sure it is vignetting and not the lens hood? To me it looks to serious to be vignetting.
    Well it's not physical vignetting or it'd be all 4 corners. It's possibly but unlikely, internal vignetting. That can be seen strongly on 2 corners but would also seem tae "creep" up the sides.

    Ah tend tae agree with Andre, looks tae me like the hood is incorrectly fitted, obvious though it may seem. Doesn't it come with a default hood? Vignetting that bad would be obvious in bright sun as well. Looks like the two long edges of the hood. That Sigma has an excellent rep for anti-vignetting. Remember reading an interview with the designer where he was very proud of that fact.

  7. #7
    deetheturk's Avatar
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    Re: Testing my new Sigma 18-35mm f1.8

    Hi Dora

    i agree with most of the comments about the lens hood causing the problem,is it the petal type that has 2 sides longer than the other? if so there's a good chance its on the wrong way.

  8. #8

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    Re: Testing my new Sigma 18-35mm f1.8

    Are you sure it is vignetting and not the lens hood
    I remember a joke about someone complaining about pain between eyebrows when drinking tea and the doctor asks: have you tried to remove the teaspoon? True, is a petal type but I think it was fitted correctly (should I remove it in low light?) at 23mm I don't have the black corners. Tomorrow I'll go back to the store and see what's wrong. I wish it was just the hood.
    Thank you all for your input
    Actually it is the hood, I tested now and it seems a little bit loose
    Last edited by dulceza; 1st October 2013 at 10:54 PM.

  9. #9

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    Andre Burger

    Re: Testing my new Sigma 18-35mm f1.8

    Problem solved?
    Now try shooting with in camera flash and a longish zoom having a hood on.

  10. #10

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    Dora B

    Re: Testing my new Sigma 18-35mm f1.8

    Yes, solved, silly me , I followed the instructions from the brochure
    Thank you

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