Thread: Illegal Hunting

Originally Posted by Sarvo

Thermal units do not pick up anything on Trail Cams

I did hear - that an Aim Point sight can pick up the infra red beam they put out for detection - anyone can verify that ??

Don't think so. But 1992 and earlier scopes for the Dragunov sniper rifle had a simple facility to take out an active infra red source.

"Another very advanced feature when this scope was introduced was the built-in infrared detection screen. After charging the IR filter for 20 minutes the screen was good for about 48 hours of use. This feature allowed the sniper to detect targets that used night vision devices powered by IR illumination. According to optics expert "Tantal" the IR detector was dropped from production scopes in 1992 even though its usefulness in combat would have been dubious much past the mid 1970s." Link to article: Dragunov dot net - PSO-1 Russian Scope Information

An afterthought on his comment about combat usefulness. Another usefulness of it was to frighten the opposition away from using active infrared, forcing them to buy more expensive 2nd and 3rd generation image intensifying equipment... which is still not working as good as active IR in pitch black overcast night weather, or indoors with no ambient light sources. Inexpensive FLIR remains a long way off.