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Horizontal lines on images (not video)

Discussion in 'Phantom 2 Vision Discussion' started by GneeChee, Feb 26, 2014.

  1. GneeChee

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    If this has been posted elsewhere, I apologize, but when I searched I only found references to lines on videos - I don't know if this is the same thing or not.

    I've had several flights, and all the pics have been fine (to my untrained eye, anyway).

    Last night, I finally upgraded the camera firmware - and went out for a bit today.

    The attached pic shows what's happening now. It's not on all pics, but most of them. It's on jpegs as well as raw images.

    It was a bit windy today (10-15 with gusts up to 20), but I've flown on windy days before.

    Any clues? Suggestions?
     

    Attached Files:

  2. gfredrone

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    Prop shadows.
     
  3. mikeramsey52

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    They are shadows of the prop blades. The camera reads the image sequentially from top to bottom and takes a relatively long time to do so - long enough for the blades to spin by several times. The sun was likely high and in front of the Phantom in this shot.
     
  4. GneeChee

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    Thanks for the quick responses, guys ... I had read about prop shadows, but hadn't really seen an example of the effect.

    And now that you mention it, today was the first time I went out flying mid-day. All previous flights have been shortly after sunrise, or right before sunset.

    I'm approaching my 30 day warranty, and I guess I panicked about the lines :)

    Thanks again!
     
  5. Gizmo3000

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    some folks have added little lens-hoods to their GoPro's to help alleviate the issue.

    Otherwise, just try flying with the sun at your (copters) back.
    .or on overcast days :D
     
  6. GneeChee

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    I remember reading about the "lens hood", but went right past it without absorbing the information.

    Good idea, though - I'll check into that.