Special Features
Power source: two 1.5 v batteries; auto shut off 5 min; target: american-style crosshair; scale reading: external; vertex power scale: 0 to +/- 25 diopters; vertex power scale graduation: 0.125d up to +/- 5d, 0.25d above +/- 5d; eyepiece adjustment: +3 to -5 diopters; lens diameter: 24 mm to 90 mm; tilt angle: 0 to 90 degree, freely adjustable; light source: led 570 nm; weight: approx. 4.0 kg