Motorola SE4750 - Imaging and Aiming Parallax

2 - 12 SE4750 Integration Guide
Imaging and Aiming Parallax
Figure 2-7 SE4750-SR LSR AIM Optical Path - Imaging and Aiming Parallax
Due to parallax, the aiming dot is located at the center of the image at 203.2 mm (8.0 inches).