Newcon Optik 20x40x100 - Manual (Page 5)

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2. SPECIFICATIONS
Magnification 20x 40x
Field of view, degrees 2.4 1.5
Apparent field of view, degrees 48 60
Exit pupil diameter, mm 5 2.5
Eye relief, mm 23 13
Eyepiece dioptre setting range,
dioptres
-5…+20
Interpupillary distance setting, mm 58-72
Light transmission (directed), min 70%
Twilight index 44.72 63.25
Relative brightness 25 6.25
Resolution, angular seconds 2.45 2.76
Dimensions, binoculars only, mm 420x257x125
Net weight (without tripod), kg, max 7
Focusing distance, m 20- 
Surveying angle, degrees 50
Elevation, degrees 85