Scanning QR codes with 3G

Discussion in 'iPhone' started by tlbwriter, Aug 24, 2011.

  1. tlbwriter macrumors regular

    Nov 21, 2008
    A friend of mine is unable to consistently scan QR codes with her 3G iPhone. A code that I can easily scan with the 3GS may not be recognized by her phone. Is the 3G just not as reliable at this? We're both using the Red Laser app.
  2. lifeguard macrumors 6502


    Nov 25, 2010
    I remember reading somewhere that the difference in camera from the 3g to the 3gs made it unreliable for scanning qr codes
  3. jav6454 macrumors P6


    Nov 14, 2007
    1 Geostationary Tower Plaza
    The iPhone 3G's camera is 2.0 MP while the iPhone 3GS has a 3.2 MP camera... that extra 1.2 MP makes a whole difference in details. Those details are key in a QR code scan.
  4. tlbwriter thread starter macrumors regular

    Nov 21, 2008
  5. Eric8199 macrumors 6502a

    Feb 27, 2009
    Also, the 3GS and 4 have autofocus, whereas the 3G does not. Therefore, the 3G is not able to clearly make things out that are really close, i.e., QR codes.

Share This Page