Newcon Optik NSN: 5855-20-000-8284 NVS 7 - Manual (Page 9)

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3. SPECIFICATIONS
Unit specifications
Model 2XT 3XT
Image Intensifier Tube
(IIT)
Gen. 2+ Gen. 3
Apparent field of view 40º 40º
Eye relief 25 mm 25 mm
1x Objective focal length
/ F-number
27.5 mm / F1.2 27.5 mm / F1.2
4x , 8x Objective focal
length, mm / F number
100 / F1.5, 216.4 / F2.0
Interpupillary distance 57-73 mm
Focus range (1x) 0.25 m - 
Dioptric correction ±5
Battery type 2 standard AA batteries
Battery life Over 80 hours without IR; over 30 hours with IR
Low battery indicator √
IR ON indicator √
Waterproof MIL-STD-810
Sizes: 1x / 4x
5x / 8x 150x120x55 mm / 165x120x70 mm
230x136x82 / 240x130x130 mm
Weight, 1x / 4x / 5x / 8x 0.480 kg / 0.690 kg / 0.800kg / 1.470 kg
NOTE: As the design is being continuously improved the actual
specifications may be better than those given above.