posted on Aug, 5 2018 @ 08:02 AM
a reply to: Iamonlyhuman
"Night vision" and "headlamps" are two different things, and they work on completely different principles. Night vision amplifies existing ambient
light so you can literally see in the dark (they're also known as starlight collectors and/or thermal imaging on the high end). Some of these devices
do have infrared illuminators for short distances. Thermal imaging works on the infrared spectrum and true night vision works on intensifying
Head lamps on the other hand illuminate things so you can see with your naked eye. The colors do make a difference for some animals, but generally
the colors are used to prevent night blindness, and red is generally the best. Other colors are used for different things. Like green for example is
a good color for tracking blood in the dark, etc. But otherwise these are just "lights" and you will be able to see them at night because they have
to cast off light for you to see.
Now, back to night vision for a moment. (I've done a fair amount of research in this area). There are several levels of devices (basically 3 with a
dirivative of a 4th). These are typically referred to as "generations", or "gen" for short. So, you have gen 1, gen 2, gen 3 and gen 3+. Anything
saying it is gen 4 is probably a ruse, as gen 3 is about as high, optically, as you can get. gen 3+ starts out as 3 in the manufacturing process, but
can later be graded 3+. They can't start out with the intent of making 3+, but it just happens as a result of the quality of the finished product.
Gen 3 gear as you might expect is the most expensive although prices have come down considerably recently. You can figure on spending $3-4,000 for
good gen 3 equipment on the low end and upwards of $10,000 on the high end.
Gen 1 is basically novelty stuff. Very short range and optically not very good. Think less than 150 feet with any clarity. It's also the cheapest
and mostly what you'll see in sporting goods stores. Always remember to look for what "generation" it is! Gen 2 is a big step up in quality and
price. This equipment will be good out to a couple hundred feet or more with good clarity. Gen 3 is an even bigger step up, and good out to several
hundred yards. You'll pay for it though. And gen 3+ is even better still. This is the top end of the starlight type equipment both price wise and
quality wise. Above this you go to thermal, and thermal is a whole other animal! Prices start in the $10k range and go up to millions. Range on
some of this gear is measured in miles not feet. It's incredible stuff, but it has equally incredible prices. Do yourself a favor and don't even
look into thermal unless you're looking to spend some big cheddar. Otherwise you'll just spoil and discourage yourself with the starlight equipment
(which is more than adequate for most people).
There are optical systems higher than gen 3, but last time I checked these were not yet available to civilians (only military and law enforcement). I
expect this will change if it hasn't already. I was pretty heavy into looking at this stuff about two years ago so some changes may already be
Hope this helps.