Narrow video angle

Discussion in 'iPhone' started by kfergiez, Nov 23, 2011.

  1. kfergiez macrumors 6502

    kfergiez

    Joined:
    Jul 5, 2010
    #1
    I was wondering if anybody knew why the viewing angle decreases when you switch from camera mode to video recording mode on iPhone 4. I don't like it.
     
  2. sammich macrumors 601

    sammich

    Joined:
    Sep 26, 2006
    Location:
    Sarcasmville.
    #2
    I think it's because video uses 'sensor crop' instead of sampling the whole frame. So it takes the middle 1920x1080 pixels of the camera sensor as the video instead of sampling every pixel of the sensor.
     
  3. kfergiez thread starter macrumors 6502

    kfergiez

    Joined:
    Jul 5, 2010
    #3
    That makes sense, but why do it in the first place?

    P.S. It's an ip4, so only 720p recording.
     
  4. MarcBook macrumors 6502a

    MarcBook

    Joined:
    Jul 13, 2008
    Location:
    Jersey, Channel Islands
    #4
    When you're recording video, the iPhone zooms in the image to fill the display (because it's shooting in 16:9 and the display is 3:2 or whatever).

    Double-tap the display when you're in video mode and it'll show the whole frame.
     
  5. sammich, Nov 24, 2011
    Last edited: Nov 24, 2011

    sammich macrumors 601

    sammich

    Joined:
    Sep 26, 2006
    Location:
    Sarcasmville.
    #6
    So, I did some (highly scientifical) testing to check this out for myself.

    [​IMG]

    I put my iPhone on the desk and taped some paper to the desk. Then I put it into each mode making sure it was only focussed on the wall, and then drew dots on the edge of the view. Then I joined the dots and measured it.

    Maybe it'll help? :)

    EDIT: The iPhone 4 doesn't have the video stabilisation, and I don't have a 4S to draw my pictures up with. Maybe someone can do it for comparison.
     
  6. kfergiez thread starter macrumors 6502

    kfergiez

    Joined:
    Jul 5, 2010
    #7
    aha... Well thank you for that. However, I still notice that the viewing angle is still slightly narrower. How odd.
     

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