Holosun DRS-TH - How I Zero Both Reticles

This video is to talk about how I zeroed both reticles the Holosun DRS-TH. What I wanted was for the red dot to be zeroed for both the visible viewport (looking through the glass) and the thermal viewport (the thermal camera display).

The trick is to move the OLED - the thermal screen - to shift the point of impact to match the red dot. That way, you don't have to change the mechanical settings of the red dot and mess up your visible viewport zero.

Once that is done, the thermal reticle has been shifted along with the OLED screen, so you move it back separately to align with the red dot. You have to do this at 1x but the thermal reticle at 1x is very small, so you can then check it at 3x and 5x to ensure proper alignment with the red dot.