Thread: Protecting Thermal Sights
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Old April 27th, 2016, 22:58   #2
Kos-Mos
 
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Join Date: Nov 2005
Location: Lévis (QC)
You can't. You need a sacrificial lens that you replace when you break it.
And no poly carbonate, you need a specific lens for the wavelength your imager detects.

Here is an example (out of stock, but price is in this ballpark).

https://www.amazon.ca/Testo-0554-880.../dp/B009NY0D2Y
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