We don't 'zero', we collimate our thermal

Published on January 31, 2025
Duration: 1:16

This guide details the process of collimating a multi-functional thermal optic, distinguishing it from traditional 'zeroing'. The presenter, demonstrating high authority, explains that these optics require digital adjustment of an internal screen to align the thermal image with the day optic's aiming point. Live-fire testing confirms the effectiveness of adjusting X and Y values to achieve accurate shot placement.

Quick Summary

Collimating a multi-functional thermal optic involves digitally adjusting its internal screen to align the aiming point with your day optic. Unlike traditional zeroing, this process corrects the digital image's position using X/Y axis values, ensuring your point of impact matches your point of aim, especially considering riser height.

Chapters

  1. 00:00Clip-on vs. Multi-functional Thermal
  2. 00:22Initial Testing & POI/POA Mismatch
  3. 00:37Collimation Process Explained
  4. 01:03Final Verification of Grouping

Frequently Asked Questions

What is the difference between zeroing and collimating a thermal optic?

Zeroing typically involves adjusting the physical reticle or optic mount to align with the point of impact. Collimating a multi-functional thermal optic means digitally adjusting its internal screen's aiming point to match the point of aim of your day optic, ensuring POI aligns with POA.

How do you collimate a multi-functional thermal optic?

You collimate by firing shots, observing the point of impact relative to your day optic's aim point, and then adjusting the X and Y digital values within the thermal optic's internal screen interface until the POI matches the POA.

What factors affect the digital adjustment values for a thermal optic?

The specific digital adjustment values (X and Y) needed for collimation depend on the thermal optic model, the rifle platform, and crucially, the height of the riser used between the thermal and the day optic.

Why is collimation important for multi-functional thermal optics?

Collimation is essential because multi-functional thermals have internal digital screens. Without proper adjustment, the digital aiming point will not align with the day optic's reticle, leading to inaccurate shot placement despite the day optic being zeroed.

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