The Oberwerk 25x/40x100mm Military Observation Binocular, an Oberwerk flagship product, come with 100mm semi-apochromatic triplet multi-coated objectives (that's about 4" across!). This is the very same binocular that was so favorably reviewed in the June 2000 issue of Sky & Telescope magazine. Do you have a magnificent view from your oceanfront, lakefront, hillside, mountain, or penthouse property? Nothing can compare with this high-quality optical instrument. Rotating ocular turrets of Oberwerk 25/40x100mm Military Observation Binoculars allow high-power viewing at 40x (the binoculars include both 25x and 40x oculars mounted on rotating turrets!) True giants, Oberwerk 25/40x100mm Military Observation Binoculars are two feet in length and weigh over 26 lbs! Until recently, they were only available to the Chinese military. With this much light-gathering power, they are ideal for astronomy- for planetary observation and comet hunting. Apparent field of view is a very wide 67.

The 40x100mm's are also fabulous for terrestrial applications. If you've got a home with a view, enjoy it to the utmost with this magnificent instrument. Comes complete with rock-solid wooden tripod, mount (which is also a removable table-top tripod), and nylon case.

Specifications for Oberwerk 100 mm Military Observation Binoculars

Objective size	100mm
Magnification	25x and 40x (5-element Erfles)
Prism	BAK4
Optic coating	Multi-coated
Field of view	26m at 1000m (1.5?)
Exit pupil diameter	2.5mm
Exit pupil distance	8.2mm
IPD (inter-pupil distance) range	58-80mm
Weight	26.5 lbs, tripod 16 lbs

Every Giant Oberwerk binocular we sell is tested (and adjusted if necessary) to perform well for terrestrial applications as well as binocular astronomy. You are assured of receiving a perfectly adjusted and well-collimated instrument. Oberwerk and OpticsPlanet.com highly recommend to use these awesome big binoculars during the day and on the night sky.

Here are some images from Oberwerk.com to help you realize the power of Oberwerk 25/40x100mm Binoculars used for Terrestrial Viewing. The Jamestown water tower (below) was photographed at a distance of exactly one mile. From this location, Oberwerk observed the water tower with Oberwerk 25/40x100mm Giant Binoculars.

The field of view was noted at both 25x and 40x magnification. The observed image for each level of magnification is represented below. Note: Even at this distance, the actual image in the binoculars was sharper and more defined than the digital photographs that are shown below.

Oberwerk Giant Binoculars at 25x - 1 mile distance

Giant Oberwerk Binoculars at 40x - 1 mile distance

Oberwerk 25/40x100mm Military Observation Binoculars w/ tripod & case & w Rating & Reviews