How to collimate PFN? (PFalcon/RH25)

Published on March 4, 2025
Duration: 3:40

This guide details how to collimate a PFalcon/RH25 thermal clip-on device to a day optic. It covers setting up the device in clip-on mode, accessing the collimation menu via button combinations, and adjusting X and Y axis settings to align the thermal image with the day optic's reticle. Proper collimation ensures point of aim equals point of impact at various distances, including 50m and 200m.

Quick Summary

To collimate a PFalcon/RH25 thermal clip-on, activate the compass overlay, then press and hold the menu and power buttons. Adjust the X and Y axis settings to align the thermal image with your day optic's reticle. A zero set at 50 meters can be effective up to 200 meters after proper collimation.

Chapters

  1. 00:00Introduction: Zeroing Thermal at 50m
  2. 00:35Initial Impact and Need for Adjustment
  3. 00:41Accessing Collimation Menu
  4. 00:50Switching to Clip-On Mode
  5. 01:01Button Combination for Collimation Menu
  6. 01:22Collimation Menu Explained (X/Y Axis)
  7. 01:43Goal: Align Thermal Image with Sight Picture
  8. 01:57Setting X-Axis to -20, Y-Axis to 0
  9. 02:12Testing Zero at 50m After Adjustment
  10. 02:40Testing Zero at 200m
  11. 03:12Conclusion: 50m Zero Works at 200m

Frequently Asked Questions

How do you access the collimation menu on a PFalcon/RH25 thermal clip-on?

To access the collimation menu on a PFalcon/RH25, first activate the compass overlay using the middle button. Then, press and hold both the menu and power buttons simultaneously until the collimation menu appears on screen.

What is the purpose of collimating a thermal clip-on device?

Collimating a thermal clip-on device aligns the thermal image displayed by the device with the reticle of your primary day optic. This ensures that your point of aim through the day optic corresponds directly to the point of impact on the target.

What are the typical factory settings for X and Y axes on a PFalcon/RH25?

The PFalcon/RH25 thermal clip-on device typically comes with factory settings of X and Y axes at zero. A common out-of-the-box setting that works well is X-axis at -20 and Y-axis at 0 for initial collimation.

Can a zero set at 50 meters be effective at longer ranges with a collimated thermal clip-on?

Yes, the video demonstrates that a zero set at 50 meters for the PFalcon/RH25 thermal clip-on can remain effective at 200 meters, achieving point of aim equals point of impact, after proper collimation.

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