Wierd distortion

Discussion in 'Beyond the Basics' started by marmle, Mar 26, 2020.

  1. marmle

    marmle TPF Noob!

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    I had a new lens delivered the other day, a Nikon AF-S 18-200mm for my D5600. I was gutted I could not try it out properly because of the new stay at home rules, but I did manage to get a few shots from outside my front door down my street. I know this pic is not some of my greatest, but when I was going over some of them at 100% I noticed an odd pinching of parts of the window frames. Is this normal for a lens of this type/ price range, or is something else wrong? I was all the way to 200mm on this shot, f/11, 1/200

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    _DSC0660.jpeg


     
    Last edited: Mar 26, 2020
  2. zombiesniper

    zombiesniper Furtographer Extraordinaire! Supporting Member

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    To me that looks like a classic case of distortion from heat waves coming from the asphalt.
     
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  3. marmle

    marmle TPF Noob!

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    That was my first thought, but I dismissed it because I did not think it hot enough to cause such a noticable effect, but I guess it really is not that noticable.
     
  4. zombiesniper

    zombiesniper Furtographer Extraordinaire! Supporting Member

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    It doesn't really need to be that warm in order for the ground (especially dark asphalt) to start creating issues with any distance shot.
     
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  5. Derrel

    Derrel Mr. Rain Cloud

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    "Heat mirage" is the term I have heard it called. Atmospheric issues can be a problem in many situations.
     
  6. Designer

    Designer Been spending a lot of time on here!

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    I wouldn't say it's "normal" for that lens without seeing examples from MANY of that type lens. I would fully expect any good lens to render straight lines, not distorted.

    I think you should perform some additional tests by taking photos in different conditions to eliminate any possibility of atmospheric mirage. If you get similar distortion in further testing, then I would seek to return the lens for a refund.
     
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  7. Sharpshooterr

    Sharpshooterr No longer a newbie, moving up!

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    Don’t really know what you’re referring to but I think I’m seeing some pin-cushion effect. I’d read some real reviews on the lens by real reviewers and see if that lens suffers from heavy or even mild pin-cushion! Good luck!
    SS
     
  8. Designer

    Designer Been spending a lot of time on here!

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    It's not "pincushioning", the lines are "wavy".
     
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  9. Sharpshooterr

    Sharpshooterr No longer a newbie, moving up!

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    If he's talking about the verticle lines? Looks like just a crappy glazing to me!!! LoL
    My guess is the lens is fine!
     
  10. wfooshee

    wfooshee No longer a newbie, moving up!

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    I'd walk up to the building and see what those lines actually look like. You might have actually captured them correctly...
     
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  11. Designer

    Designer Been spending a lot of time on here!

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    Since they're metal extrusions, I would expect them to be absolutely straight. (Not "glazed", IOW)
     
  12. Sharpshooterr

    Sharpshooterr No longer a newbie, moving up!

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    Metal extrusions? They might also be cheap plastic clad windows. It doesn’t take all that much to distort the cheap plastic stuff.
    Do you REALLY think it’s a lens optical problem?
    My money is the problem is with the windows and not the lens, unless everything that lens shoots is wavy!!!
    SS
     

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