ATN PS-27, Руководство оператора

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Table 1-4. Optical Data
ITEM DATA
Objective Lens Focal Length 80 mm
Objective Lens F/number 1:1.23
Objective Lens T/number 1:1.8
Focus Range 10 m to infinity
Field of View 12˚
Output Lens Exit Pupil Diameter 40 mm
Table 1-5. Environmental Data
ITEM DATA
Operating Temperature -20 to +50 ˚C
Storage Temperature -50 to +50 ˚C
Humidity 95 %, 25 ˚C to 40 ˚C for 48 hours
Illumination Required Natural night illumination (overcast
starlight to moonlight)
Immersion 10 m for 30 minutes