Nikon Automatic Level AC-2S[4 Nov. 2008, 2:09:24]
The economical, compact and lightweight AC-2S features a built-in compensator with magnetic damper that automatically levels line of sight. With an endless horizontal tangent screw, it is operable with either hand and employs a friction brake for faster operation. Moreover, it can be mounted on flat- or spherical-head tripod.
Other features
• Attainable accuracy in 1km double-run leveling of ±2.0mm
• 24x, ø30mm-dia. telescope for bright, erect and sharp images
• 0.75m/2.5ft. minimum focusing distance