Pentax 4X20 VD WP 3-in-1 Binocular

Outfitted with a truly innovative design, the Pentax 4X20 VD WP 3-in-1 Binocular can be quickly and easily converted from a simple binocular into either two separate monoculars or, with the optical tubes stacked one in front of the other, a powerful 16x spotting scope. Depending on what configuration you put the 4x20 VD in, the performance will change. For example:

• As a binocular the close focus distance is 5 feet, but as monoculars that distance drops to an impressive 20 inches.
• The angle of view constricts from 10° as a binocular or monocular to 2.6° in spotter mode.
• Similarly, the exit pupil is 5mm in binocular/monocular modes and drops to 1.25mm in spotter configuration.