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Armasight Contractor 640 3-12x50 vs Armasight Contractor 640 4.8-19.2x75

The Contractor 640 3-12x50 runs a 640×480 core at 12 µm behind a 50 mm lens; the Contractor 640 4.8-19.2x75 runs 640×480 at 12 µm behind 75 mm. The Contractor 640 3-12x50 is lighter by 4.8 oz. Approximate prices are ~$2,999 and ~$3,399.

How far you can see a person
Armasight Contractor 640 3-12x50640×480 · 12 µm · 50 mm
160 m make out detail260 m tell what it is1,042 m spot itmaker claims 1,865 m
Armasight Contractor 640 4.8-19.2x75640×480 · 12 µm · 75 mm
240 m make out detail391 m tell what it is1,563 m spot itmaker claims 2,797 m
501002005001k2k5k m
Calculated from the sensor's pixel pitch and the lens focal length, for clear air.
SpecArmasightArmasight Contractor 640 3-12x50ArmasightArmasight Contractor 640 4.8-19.2x75
Published
Sensor640×480640×480
Pixel pitch12 µm12 µm
NETD<40 mK—
Refresh rate60 Hz60 Hz
Lens50 mm75 mm
Base magnification3.2×4.8×
Digital zoomup to 4×up to 19.2×
Field of view8.8° horizontal5.87° horizontal
Display1024x768 AMOLED1024x768 AMOLED
Claimed detection1,865 m2,797 m
Claim basishuman-sized targethuman-sized target
Run time4 h4 h
Battery typeCR123CR123
Weight32 oz36.8 oz
Length9.4″8.9″
Laser rangefinderNoNo
Ballistic calculatorNoNo
Records videoYesYes
Wi-FiYesYes
IP ratingIP67IP67
Warranty3 years3 years (with registration)
Approx. price~$2,999~$3,399
Derived here
IFOV0.240 mrad0.160 mrad
Est. detection1,042 m1,563 m
Est. recognition260 m391 m
Est. identification160 m240 m
Claim ÷ estimate1.8×1.8×
Derived field of view8.8°5.9°
Pixels per degree72.9109.2
Where to buyAmazon →Amazon →

Tinted rows are where these two differ. Prices are approximate.