Flares might be onto something

Published on November 8, 2025
Duration: 0:42

This guide details an experimental technique for testing the effectiveness of handheld flares against night vision and thermal optics. The presenter, demonstrating high expertise with tactical gear, shows how flares can blind night vision sensors but are less effective against thermal imaging. This technique is valuable for understanding optical countermeasures in low-light scenarios.

Quick Summary

Flares significantly impact night vision devices by causing extreme light saturation, rendering them ineffective. Thermal optics are more resilient, registering flares as heat signatures but generally maintaining visibility of background targets like people.

Chapters

  1. 00:00Introduction to Flares
  2. 00:11Night Vision Test
  3. 00:21Thermal Optics Test

Frequently Asked Questions

How do flares affect night vision devices?

Flares can completely overwhelm night vision sensors with intense light, causing sensor saturation. This 'blinding' effect renders the night vision device ineffective for seeing anything near the flare source during its operation.

Are thermal optics affected by flares?

Thermal optics are less affected by flares. While the flare itself registers as a bright heat signature, it does not typically obscure other heat sources, such as a person, in the background.

What is the main difference in flare impact between night vision and thermal?

The primary difference is susceptibility. Night vision is highly vulnerable to light saturation from flares, while thermal imaging is more resilient, primarily registering the flare as a distinct heat source without losing background detail.

What gear was used in the flare test?

The test involved a handheld flare, a night vision device, and a thermal optic. The presenter also utilized specialized tactical gear, including a ghillie suit and chest rig, indicating a focus on practical field application.

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