Armasight Collector 320 1.5-6x19 vs Armasight Contractor 320 3-12x25
The Collector 320 1.5-6x19 runs a 320×240 core at 12 µm behind a 19 mm lens; the Contractor 320 3-12x25 runs 320×240 at 12 µm behind 25 mm. On the Johnson yardstick they detect a person at 396 m and 521 m and recognize one at 99 m and 130 m; the boxes say 708 m and 932 m. The Collector 320 1.5-6x19 is lighter by 9.7 oz. Approximate prices are ~$1,299 and ~$1,649.
Estimated range, standing human, clear air
IdentifyRecognizeDetectBox claim
Armasight Collector 320 1.5-6x19320×240 · 12 µm · 19 mm
61 m identify99 m recognize396 m detectbox says 708 m (human-sized target)
Armasight Contractor 320 3-12x25320×240 · 12 µm · 25 mm
80 m identify130 m recognize521 m detectbox says 932 m (human-sized target)
501002005001k2k5k m
Estimated from pixel pitch and lens focal length using the Johnson criteria (2, 8 and 13 pixels across a 0.5 m human critical dimension), clear air, 50 % probability. A model of the optics, not a measurement — real range depends on temperature contrast, humidity and the animal.