Prismatic focus, gives extra steady viewing
Zoom: 15 to 45x
Object lens: ?60mm
Multi-coated optics with high transmission coating
5.8m close focus
Exit pupil distance: 13.9 to 15mm
Exit pupil diameter: 1.32 to 4mm
Viewing angle: 0.9 to 2.7 degrees
Field of view: 16 to 47m/1,000m