>Print Page Where is the optical axis on a P Series camera? The measurement from the camera bottom mounting plate to the center of the optical axis is 55.7 mm Related Articles In-Person Training FLIR THERMAL FENCE with FH-Series ID - Personal Online Presentation Learn more Product News FLIR Announces the TG165-X Thermal Camera with Added Patented MSX Image Enhancement Learn more How To Thermal Imaging for Detecting Elevated Body Temperature Learn more