I had tested a LG G3 to see the video and foto performances of this device, in realy hard condition, I mean that the ambiental light were really bad, it was 22.00 o`clock and the place also was not good – the 7th floor of a building, but surprisingly the LG`s engineers did a good job when they made this amazingly device.
Let`s talk about the video and photo characteristics of it:

  •    CAMERA  – Primary 13 MP, 4160 x 3120 pixels, phase detection/laser autofocus, optical image stabilization, dual-LED (dual tone) flash, an image in original size can be downloaded from HERE                                             ♦→→→→→→→
  •    Features 1/3” sensor size, simultaneous video and image recording, geo-tagging, face detection, HDR
    Conclusion: In low light condition the performance of this device are not so good, but for a phone it is quite good, I compare this performance with the performance of an cheap compact camera.
In good light condition the camera is remarcable, it can be used to shot image and video as weel as an cheap DSLR camera.
The size of a photo can vary from 2mb up to more than 10mb at 13mp.
                    A 4K video shot with this device can be very large, for example the first youtube video abovementioned  has 200 mb.