Greenough optical system offers a 7:1 zoom ratio and provides exceptional image quality and excellent depth of field. Zoom stereo body includes the following:
- Body: Binocular with rugged all-metal body design. Trinocular version directs light to eyetubes and trinocular tube simultaneously.
- Objective Zoom Range: 1x - 7x.
- Magnification: 10x - 70x (when using 10x eyepieces - MA502).
- Field of View: 22mm at 10x, 3.14mm at 70x.
- Working Distance: 90mm (with supplemental auxiliary objectives working distance can be changed).
- Eyetube Inclination: 45°.
- Interpupilliary Distance Adjustment: 54mm - 75mm.
- Dioptric Adjustment: Both eyetubes.
- Extended Magnification Range: 1.5x - 420x.
- Extended Working Distance: 230mm (with supplemental auxiliary objectives).