laser depth readings: 1.3-3.4m from checkerboard
Left camera: Canon EOS6D, label A
Right camera: Canon EOS6D, label B

Focal-lengths: 28,32,36,40,45,50,55,60,65,70mm.

For each focal length, calibration images are captured with F16 aperture, 
                       inference images are captured with F2.8, F5, F9, F16, F22 apertures.