Distortion Issues

Discussion in 'Beyond the Basics' started by ORourkeK, Apr 12, 2019.

  1. Derrel

    Derrel Mr. Rain Cloud

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  2. JBPhotog

    JBPhotog No longer a newbie, moving up!

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  3. ORourkeK

    ORourkeK No longer a newbie, moving up!

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    @JBPhotog I don't believe anyone is questioning the performance of the lens? And sorry if I have not made it clear yet, but Bokeh is not what I was referring to. Someone else mentioned it and I misunderstood what they were saying. Again, the issue is 100 percent with distortion. The article that Derrel linked, and that Dennis had quoted from, is a very good read about the issue I am discussing.
     
  4. ORourkeK

    ORourkeK No longer a newbie, moving up!

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    Some incredible photos in that thread, by the way!
     
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  5. JBPhotog

    JBPhotog No longer a newbie, moving up!

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    The 105mm F1.4 E has very little distortion, by Thom's testing 0.25% other sites suggest pincushion distortion less than 1%. That being said the "distortion" you are seeing has more to due with bokeh than actual optical distortion. The term used is swirly bokeh as the circles of confusion get ovalized at the edges of the frame due to optical design, your image #1 shows this very clearly and may be mistaken for optical distortion. I might suggest you shoot a grid or a brick wall and see how much distortion you have.

    32650348197_e69ec62946_c-edit.jpg
     
    Last edited: Apr 16, 2019
  6. Braineack

    Braineack Been spending a lot of time on here!

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    the cat-eye bokeh balls are one of the characteristics of this lens...
     
  7. ORourkeK

    ORourkeK No longer a newbie, moving up!

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    Yeah. That is not what I am referring to. I will have to give a better example since I can see why it is hard to tell what I am referring to in this example.
     
  8. Dao

    Dao No longer a newbie, moving up!

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    Yes. When shoot in wide open, some lens' entrance pupil maybe partially blocked by the side of the lens at the corner of the frame. I think if the lens has a round hood, it may be worse.
     
  9. dxqcanada

    dxqcanada Been spending a lot of time on here!

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  10. ORourkeK

    ORourkeK No longer a newbie, moving up!

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    Well, after editing the photo, I am much happier with it. I took what @The_Traveler had to say to create what I feel is a better composition.

    [​IMG]
     
  11. Braineack

    Braineack Been spending a lot of time on here!

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    I know exactly what you're talking about. the swirling bokeh around the edge of the image is a characteristic of the lens. there's thousands of examples of it exhibiting it, and most reviews mention it.
     
  12. ORourkeK

    ORourkeK No longer a newbie, moving up!

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    I am definitely glad it is a characteristic of the lens and not something I am doing wrong. Even though I am not a big fan of that characteristic, I am in love with the lens.

    Do you find yourself using your primes more than your 24-70? I have been thinking about giving up the 24-70 and just going the prime route. Although I may hang onto the 24-70 for video.
     

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