The sensor is measuring inbound LWIR Radiation. No IR light would improve resolution. The only way to improve resolution is to get closer to your acquisition target. More pixels per Square inch, better resolution. That's why you see much better "resolution" with a 640 sensor than you do with a 336.An IR light will improve both resolution and general viewing with any thermal. If you could manage to mount a FandyFire flashlight to your Flir XT without degrading performance it is a really effective IR illuminator.
I stand corrected.The sensor is measuring inbound LWIR Radiation. No IR light would improve resolution. The only way to improve resolution is to get closer to your acquisition target. More pixels per Square inch, better resolution. That's why you see much better "resolution" with a 640 sensor than you do with a 336.
Glad to help. I owe my knowledge to these great forums.Thank you both.
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