U.S. Navy
Big Eye Binocurlars

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U.S. Navy “Big Eyes” Binoculars

BIG EYES 25/40/100 BINOCULARS

5 STARS

CHINESE MILITARY PATTERN – RUSSIAN OPTICS

 

This is the ultimate optical instrument for terrestrial observation. If you have a home with a view, enjoy it to the utmost with this magnificent instrument.

We use the term Big Eyes as it was applied to the U.S. Navy shipboard high powered, long range, binoculars of World War II. There is an unrelated company who has adopted Big Eyes as their company name.

Shown in a home enviornment

 

Presented  is a wonderful high powered, long range “Big Eyes” binocular set that is in impeccable condition with very few visible signs of wear or use. The design is that of the Chinese Military Binoculars,  with Russian optics.  Everything works flawlessly in our simple tests. The images show sharp and bright and there are no visible imperfections in the optical system when looking backwards through the objective lens, or normally through the ocular lens.  Because of the high power, the sighted object must be more than 50 yards distant to be brought into sharp focus.

The twin turrets have two eye pieces, the smaller one is 40mm, and the larger is 25mm. Because of the high power, the sighted object must be more than 50 yards distant to be brought into sharp focus.  The two rotating ocular turrets allow wide-angle viewing at 25x, and high-power viewing at 40x.  The apparent field of view, depending on the power selected, ranges from 52° to 62° which is very wide.

Side View                                                                                                  Front View                                                                            Top View

 

The binocular’s barrel is covered in traditional pebble-grain black, and its 1950’s era high quality wood tripod gives it the look of a military antique.  Before the Chinese entered this arena, binoculars of this design and specifications were featured in national catalogs for $3995!
The two rotating ocular turrets allow wide-angle viewing at 25x, and high-power viewing at 40x.  The apparent field of view, depending on the power selected, ranges from 52° to 62° which is very wide. It is a Giant having a viewing element over two feet in length and it weighs a hefty 26 1/2 lbs!  For decades, only Carl Zeiss designed binoculars of this type and they were only available to the East German and Chinese militaries or in the after-market at much higher prices. When you see the quality of construction, and the quality of the optics, you’ll understand why, in the past, it could sell for such a high price. Comes complete with a sturdy wood tripod, metal tabletop tripod, and lightweight nylon form-fitted case.

CONDITION:  There is very  minor evidence of prior use or wear and can be considered as almost new in all respects.  There is   no paperwork or operator’s  manual. There are no markings except for its Serial Number 3500351, and the power and size of the objective lenses. There is some minor marks on the outside cover, and the case shows age more than wear.

 TYPICAL SPECIFICATIONS OF THE CHINESE MILITARY BINOCULAR

Model 25/40 x100 standard
Objective size 100 mm or 4″
Magnification 25x and 40x
Ocular Straight-through turrets
Focus system Individual
Prism Porro / BAK4
Coating Multi-coated
Focal length 597 mm
Field of view at 1000m 25x- 44 m

40x- 26 m

Angle of View 25x- 2.5º

40x- 1.5º

Exit Pupil distance 25x- 14 mm

40x- 8.2 mm

Exit pupil diameter 25x- 4 mm

40x- 2.5 mm

Inter-pupil distance 58-80 mm
Minimum focus distance 25 m
Packing Nylon case – 28″ L x 14″ W x 11″ D
Erected weight 26.5 pounds
Tripod net weight 16.5 pounds

 

 

 

 

 

 

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Shipping & Packaging

The cost of shipping, packing, handling, and insurance to your destination, will be calculated point to point and is an additional charge. You may email us to get these costs. We price our shipping honestly, but we expect to be reimbursed for the nominal cost of packaging materials and handling.

Our Unconditional 'No Nonsense' Guarantee

If not completely satisfied with your purchase it may be returned, if without damage, within three days of receipt in its original packaging. Return items must be insured for their full value. Only a prior email authorization by us for the return is required. Shipping charges are refundable if due to our error within the continental United States.

International buyers welcome, but inquire first. We have satisfied customers worldwide.

Standard Forms of Payment

Bank wire transfer, cashier’s check, money order, or personal check in which case the item will be held until cleared. Our prices are quoted net to us so that the use of credit cards or PayPal incur extra charges. Terms on overseas sales are different.

Established in 2003

Celebrating 18 Years of Exellence in Nautical Antiques