Zeiss SFL 40 10x40

Magnification

10 ×

Effective lens diameter

40 mm

Light transmission

90%

Exit pupil diameter

4.0 mm

Twilight factor

20.0

Field of view at 1,000 m (yds)

115 m (345 ft)

Subjective viewing angle

62° Ww

Close focusing distance

1.5 m (4.9 ft)

Diopter adjustment range

− 4.0 | + 4.0 dpt

Exit pupil distance

18 mm

Pupil distance

52 – 74 mm

Lens type

UHD

Prism system

Schmidt-Pechan

LotuTec | Nitrogen filled

+ | +

Water resistance

400 mbar

Operating temperature

− 20°C | + 55°C (− 4°F | + 131°F)

Length

144 mm (5.7 ")

Width at an interpupillary distance of 65 mm

114 mm (4.5 ")

Weight

640 g (22.6 oz)