20 X 120 Kollmorgen Mark I 45-degree Binoculars

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20 X 120 Kollmorgen Mark I 45-degree Binoculars

Kollmorgen 20 X 120 is known as one of the most massive “Navy Big Eyes” ship binoculars used by the U.S. Navy. U.S. Navy ships would mount a 20 X 120 Big Eye binocular on the deck just off the bridge. The 45-degree lens angle provided ease of use aboard ship where lookouts could spend hours scanning the horizon.

Long-range military observation relied on Big Eye binoculars since the late 19th century. They were preferred for their large magnification, which gave a significant advantage out at sea.


 

Uses

These 20 X 120 binoculars are great for astronomy as they perform beautifully in low-light conditions. However, they are quite large and can be quite heavy, so they must be mounted either permanently or on a heavy-duty stand.

If you enjoy the industrial look, you can keep them in their original glory painted with Navy grey paint, or have them polished down to a shiny brilliance and they will become a focal point in your home, office, or on the deck of your yacht. As a functional piece of art, you will enjoy star gazing in style.

Specifications

· 120mm coated objective lens

· 45-degree offset eyepieces using rhomboid prisms

· Field of View – 3.5 degrees

· Apparent Field of View up to 70 degrees

· 1 ¼ inch internal eyepiece focus

· Individual external focusing knobs

· Built in adjustable rubber sunshades

· Interpupillary distance controls

· Built-in polarizing filters

· 20mm Eye relief

· Refillable desiccant chambers

· Completely sealed and waterproof

· 22 inches long, 15 inches wide

· Weight: 33 pounds

The most unique pair of 20x120 Kollmorgen Mark 1 Binoculars, that have been fully restored by our US Navy Optician.

 

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