7×21 CL Curio Anthracite

AT A GLANCE

Magnification 7x

Effective objective lens diameter (mm) 21

Exit pupil diameter (mm) 3

Exit pupil distance (mm) 16

Field of view (m/1,000 m / ft/1,000 yd) 135 / 405

Field of view (degrees) 7.7

Field of view for eyeglass wearers (degrees) 7.7

Field of view, apparent (degrees) 51

Shortest focusing distance (m / ft) 2.5 / 8.2

Diopter adjustment left/right (dpt) ± 4

Diopter correction at ∞ (dpt) > 4

Interpupillary distance (mm / in) 50 – 74 / 2 – 2.9

Light transmission (%) 90

Twilight factor based on DIN 58388 12.1

Optical elements 20

Dimensions L* x W** x H** (mm / in) 92 x 95 x 44 / 3.6 x 3.7 x 1.7

Approx. width, closed (mm / in) 62 / 2.4

Approx. weight (g / oz) 250 / 8.9

Optical coatings: SWAROTOP, SWARODUR, SWAROBRIGHT · Functional temperature: -25°C to +55°C (-13/+131°F) · Storage temperature: -30°C to +70°C (-22/+158°F) · Submersion tightness: 4m (13ft) (inert gas filling) · * with lowered eyecups · ** at interpupillary distance of 64mm (2.5in