Product Description Precise measurements from waterproof, high-power telescopes Nikon AS 2C Series auto levels feature waterproof, high-power telescopes that help you make precise measurements even in the wettest conditions. They feature a unique automatic air-dampened compensator to prevent magnetic interference, and an endless horizontal fine drive to ensure smooth, precise pointing and angular measurement. AS/AE Series auto levels are easy to set up and easy to use. All four models can attach to both flat- and spherical-head tripods, and the standard optical sight lens helps you find your target quickly, easily and accurately. And a mirror with a pentaprism lets you view the circular bubble as an erect image during setup and sighting. TELESCOPE Tube length 10.2 in (259 mm) Image erect Effective aperture of objective 1.77 in (45 mm) Magnification 34x Resolution power 2.5″ Field of view 1°20′ (2.3 ft @ 100 ft) Minimum focusing distance 3.28 ft (1.0 m) Stadia ratio 1:100 Stadia additive constant 0 LEVEL VIAL SENSITIVITY Circular level 10’/2 mm STANDARD DEVIATION in 1-km double-run leveling Without micrometer ±0.8 mm With micrometer ±0.4 mm AUTOMATIC COMPENSATOR Type wire-hung, air damper Compensation range ±12′ Setting accuracy ±0.3″ HORIZONTAL CIRCLE (AS-2C only) Diameter of circle 3.2 in (80 mm) Minimum increment 1°/1 g Scale reading (direct) 10’/10 cg Reading by estimation 1’/1 cg DIMENSIONS Instrument (L x W x H) 10.2 x 5.4 x 5.6 in (259 x 136 x 142 mm) Carrying case (L x W x H) 14.9 x 7.7 x 7.8 in (379 x 195 x 197 mm) WEIGHT Instrument AS-2: 4.0 lb (1.8 kg) AS-2C: 4.2 lb (1.9 kg) Carrying case AS-2: 4.0 lb (1.8 kg) AS-2C: 4.2 lb (1.9 kg)
