Bering Optics Super Yoter C vs Pulsar Krypton 2 FXG50
The Super Yoter C runs a 640×480 core at 12 µm behind a 50 mm lens; the Krypton 2 FXG50 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 2,290 m and 2,300 m. The Super Yoter C is lighter by 2.1 oz. Approximate prices are ~$3,895 and ~$5,000.
Estimated range, standing human, clear air
IdentifyRecognizeDetectBox claim
Bering Optics Super Yoter C640×480 · 12 µm · 50 mm
160 m identify260 m recognize1,042 m detectbox says 2,290 m (human-sized target (2500 yd))
Pulsar Krypton 2 FXG50640×480 · 12 µm · 50 mm
160 m identify260 m recognize1,042 m detectbox says 2,300 m (1.8 m object)
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.