Z-axis flipped upside down
BLAM 0.6 doesn´t work for me with blender 2.69 and 2.71. Everything is fine except for the camara which is alway upside down.

i have the same problem using x axis and z axis to calibrate
I have the same problem with 2.74, it's just too bad it's a great addon otherwise.
Same problem on version 2.78. The camera always has it's local Z-axis pointing down (opposite direction from global Z-axis)
I have the same problem. It's been over 4 years this issue was opened. Has anyone got any turnaround to this problem? My turnaround is to create the models upside down only then to rotate the object.