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Why would you reduce effectiveness to 25% all to reduce negligible glow?
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The red glow of my 600v looks about like a standard red headlamp without any forward projection. It is brighter and more visible from side angles than my SuperTac IR. I made a filter for the Surefire that eliminates all glow. Unfortunately, it also cuts useful range to about 30 yards.
Why would you reduce effectiveness to 25% all to reduce negligible glow?
Because my area of operations has thick vegetation, so ranges would typically be close (50 yards). The stock unit is to bright for close work anyway. For close range use (hunting or tactical) the red glow issue is very detrimental, regardless of light discipline. I haven't checked the red glow detection range, but it is likely visible to well over 100 yards.
Two operational points need to be made:
First, the filter is a slip on. My thought is that it could be quickly removed in the event longer range was needed and the glow would mitigated to some extent by the increased distance.
Second, while my setup does incorporate a LAM, primary NV sighting is accomplished thru an EoTech on a riser with the NOD run on the dominant eye. See previously posted threads (by augee) regarding this method. It's drawback is white light transition speed, but since that isn't a huge concern to me I was able to get by with the Vampire Scout.
The AA Scout has some real world advantages. I love the battery commonality with the EoTech and PVS14 (and GPS, radio, ect), switching, mounting (Haley Strategic), and the compactness the Vampire provides. To my disappointment, the visible signature is excessive though it is common knowledge that an LED based illuminator would have some glow. Surefire tells me my unit is normal. It seems like the TIR Lens exacerbates the problem.