Armasight Contractor 640 3-12x50 vs Bering Optics Super Yoter R 50
The Contractor 640 3-12x50 runs a 640×480 core at 12 µm behind a 50 mm lens; the Super Yoter R 50 runs 640×480 at 12 µm behind 50 mm. On the Johnson yardstick they detect a person at 1,042 m and 1,042 m and recognize one at 260 m and 260 m; the boxes say 1,865 m and 2,000 m. The Super Yoter R 50 is lighter by 12.0 oz. Approximate prices are ~$2,999 and ~$3,395.
Estimated range, standing human, clear air
IdentifyRecognizeDetectBox claim
Armasight Contractor 640 3-12x50640×480 · 12 µm · 50 mm
160 m identify260 m recognize1,042 m detectbox says 1,865 m (human-sized target)
Bering Optics Super Yoter R 50640×480 · 12 µm · 50 mm
160 m identify260 m recognize1,042 m detectbox says 2,000 m (6 ft 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.