Optoma GB-200 - Manual (Page 6)

3. Ensure input/output timing setting is the same
between GB1000 & Projector. Re-click if you
see magenta flashing screen in 10 seconds.
4. Select the model of connected camera. The
projection image must be within camera filed
of view but exceed green border. Adjust
camera position if necessary.
5. Click “Camera Calibration” to optimize camera.
Do not change environment lighting condition
once calibration completed.
6. Click “Fit to Screen” to adjust L/R projector
display four corners. Each marker movement
can be adjusted by changing pixel range (1~7
pixels of each movement).