On computers running Windows 8.1, if CameraWindow does not start up when a camera is connected, please confirm that Microsoft .NET Framework 3.5 (hereafter referred to as .NET Framework 3.5) has been installed.
Native aspect ratio of the camera screen, also used for display on standard definition televisions or similar display devices, or for printing images at 3.5 x 5-inch or A-series sizes. A square-shaped aspect ratio.