"Classic" Long-Range Observation Binocular

Highly rated by both Sky & Telescope and Astronomy Magazine

Ideal for long range viewing in the sky or on land.The legendary Oberwerk, Long-Range Observation Binocular now with 100mm semi-apochromat triplet objectives (each objective is 4" in diameter), and fully broadband multi-coated optics is the ultimate optical instrument for terrestrial observation as well as astronomical viewing.

Once only available for military use, this advanced binocular makes the most of any view. Rotating ocular turrets allow wide-angle viewing at 25x and high-power viewing at 40x. Apparent field of view is a very wide 67°.

The traditional black model has the look of a military antique. Comes complete with rock-solid wooden tripod, mount (which is also a removable table-top tripod), and a lightweight nylon form-fitted case.
Specifications:
Objective size: 100mm (triplet semi-apo)
Magnification: 25x and 40x (5-element Erfle)
Prism: BAK4
Optic coating: Fully Broadband Multi-coated
Field of view: 25x- 44m at 1000m (2.52°)/ 40x- 26m at 1000m (1.5°)/
Apparent FOV- ~67°
Exit pupil diameter: 25x- 4mm/ 40x- 2.5mm
Exit pupil distance (eye relief): 25x- 14mm/ 40x- 8.2mm
IPD (inter-pupil distance) range: 58-80mm
Weight: 26.5 lbs, tripod 16 lbs.