Oberwerk's flagship product - the legendary 25/40x100 Long-Range Observation Binocular, with 100mm semi-apochromat triplet objectives (each objective is 4" in diameter!), and fully broadband multi-coated optics. This is an improved version of the binocular that was so favorably reviewed in the June 2000 issue of Sky & Telescope magazine as well as the May 2003 issue of Astronomy magazine.
Rotating ocular turrets allow wide-angle viewing at 25x and high-power viewing at 40x. Apparent field of view is a very wide 67°. True giants, these are two feet in length and weigh over 26 lbs! For decades, this Carl Zeiss-designed binocular was available only to the East German and Chinese militaries. Now the same factories are producing these for Oberwerk Corporation for the civilian market. This is the ultimate optical instrument for terrestrial observation as well as astronomical viewing. With this much light-gathering power, they are ideal for astronomy - for planetary observation and comet hunting. Here's an example of what you can expect to see.
This binocular is available in two styles - "Contemporary" and "Military (Classic)". The "Contemporary" (25/40x100A) is finished in an automotive-quality champagne color, and has a modern high-tech appearance. It includes a convenient removable handle. There's also an optional 7x50mm finderscope available for this model.
Comes complete with rock-solid wooden tripod, mount (which is also a removable table-top tripod), and lightweight nylon form-fitted case.
| Objective Size | 100mm |
| Magnification | 25x and 40x (5-element Erfle oculars) |
| 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 |
| Objective Lens Diameter | 100mm |
|---|---|
| Case | Yes |
| Coatings | Fully Broadband Multi-Coated |
| Exit Pupil | 2.5mm |
| Eye Relief | 8.2mm |
| Field of View (Angular) | 1.5° |
| Inter-Pupillary Distance | 58 - 80mm |
| Magnification | 40x |
| Tripod Adaptable | yes |
| Warranty | One Year Limited Manufacturer's Warranty |
| Weight | Binocular 26.5 lbs, Tripod 16 lbs |

