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Expanded Specifications Zeiss SFL 8X40 Binoculars
Magnification
8x
Effective lens diameter
40mm
Light transmission
90%
Exit pupil diameter
5.0mm
Twilight factor
17.9
Field of view at 1,000m (yds)
140m (420 ft)
Subjective viewing angle
60° Ww
Close focusing distance
1.5m (4.9 ft)
Diopter adjustment range
− 4.0 | + 4.0 dpt
Exit pupil distance
18mm
Pupil distance
52–74mm
Lens type
UHD
Prism system
Schmidt-Pechan
Water resistance
400 mbar
Operating temperature
−20°C | +55°C (−4°F | +131°F)
Length
144mm (5.7")
Width at an interpupillary distance of 65mm
114mm (4.5")
Weight
640g (22.6oz)
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