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ATC 17-40×56 SPECIFICATION

OBJECTIVE

17-40x Magnification
56 mm Effective objective lens diameter
3.4-1.4 mm Exit pupil diameter
20 mm Eye relief
186-102 ft/1000 yds Field of view at m/1,000 m / ft/1,000 yds
3.52-1.93° Field of view degrees
57-71° Field of view apparent
11.2 ft Shortest focusing distance
> 5 dpt Diopter correction at ∞
88% Light transmission

SIZE & WEIGHT

34.2 in Weight
10.2 in Length in mm.

STC 17-40×56 SPECIFICATION

OBJECTIVE

17-40x Magnification
56 mm Effective objective lens diameter
3.4-1.4 mm Exit pupil diameter
20 mm Eye relief
186-102 ft/1000 yds Field of view at m/1,000 m / ft/1,000 yds
3.52-1.93° Field of view degrees
57-71° Field of view apparent
11.2 ft Shortest focusing distance
> 5 dpt Diopter correction at ∞
88% Light transmission

SIZE & WEIGHT

34.6 in Weight
11.2 in Length in mm
Model

ATC 17-40×56, STC 17-40×56

Color

Orange, Green