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Thermal Scope FAQs:
Can thermal scopes see through smoke?
Yes, they certainly can! The internal sensors do not see light and dark, but are calibrated for ranges of temperatures so the visible light spectrum doesn’t affect the input. It’s important to note these sensors are sensitive to heat, also known as thermal radiation – so technically they detect the radiation levels, which we all know increase with temperature. While some smoke can be impressively dense – and thus have a heat signature of sorts – thermal imagers are widely used by firefighters to see through smoke and walls to pick up injured people or hiding children or dogs.
How much does a thermal scope help with hunting?
A thermal rifle scope gives a good advantage during the day as you’re tracking into the brush. Also, most hunters use their thermal scopes to give their grounds a quick sweep to see if there are any other predators in the area or hunters that could be potentially in harm’s way, preventing an accidental shooting of a fellow hunter or even someone’s pet. Using a thermal scope for hunting shows its superiority when you are on an early morning or night hunt. Since they require no ambient light, you can be on the darkest plain and still pick out all the roaming critters.
How long does a thermal scope normally last?
With proper care – and without being dropped – you can expect years of use from your long range thermal scope. Batteries on the other hand, are an entirely different story. Depending on your shooting conditions and temperature, the lithium batteries should hold a charge for six to eight hours of constant use. Keep at least one spare set in your pocket; the heat from your body will keep the batteries from draining in colder weather.
What is the difference between infrared scopes vs thermal scopes?
Infrared sensing requires infrared light-waves, and measure the radiation emitted within the infrared spectrum. Generally speaking, infrared refers to the “near infrared” – this is just part of the spectrum closest to red. Thermal sensing measures the absolute temperature of an object, mapping differences in heat so they require no light. Also, thermal scopes work across a broader range of the spectrum
On a side note … Keep in mind that night vision designed to multiply even the tiniest amount of light to allow you to see a green-hued image, the brighter light being the denser objects. Night vision does not see through anything, and does not calculate temperature of an object.