Black bands in the picture of a monitor via 5S

Discussion in 'iPhone' started by Droidzoid, Mar 30, 2014.

  1. Droidzoid Suspended

    Droidzoid

    Joined:
    Mar 30, 2014
    #1
    http://i.imgur.com/GTmRTar.jpg

    Whats with the black bands on a LCD monitor?

    Also I seem to notice similar flickering in the camera app under low light conditions. What are they all about?
     
  2. T5BRICK macrumors 604

    T5BRICK

    Joined:
    Aug 3, 2006
    Location:
    Oregon
    #2
    It's a moiré pattern. It's caused when two patterns overlap; in this case, the pixels of the display and the pixels generated by the camera are the two patterns.
     
  3. phixionalninja macrumors member

    Joined:
    Jun 23, 2010
    #3
    The finer curving lines are moire, but I think the bigger darker bands are probably from the rolling shutter catching multiple screen refreshes on the monitor (that is, the monitor is flickering at probably 60Hz, and the bright bars are where it's fully on).
     

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