Stereo zoom binocular head is non-ESD, baked-on powder-coat for superior durability.

• Achromatic lenses with anti-reflective coatings
• Cast alloy aluminum body, all metal gears
• Working distance 118 mm (if used with a 0.5× reducing lens, working distance is 195 mm)
• Fits focus mounts with 76 mm diameter yoke
• Click-stops on the zoom knob at 1.0, 2.0, 3.0 and 4.0 ensure repeatable magnification changes

It has 23 mm field of view, with magnification range 0.7× to 4.5× (7× to 45× when used with optional 10× eyepieces).