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February 18, 2009
Nikon Vision Co., Ltd., a subsidiary of Nikon Corporation, is pleased to present the new MONARCH X binoculars, superior models in the globally popular MONARCH series. These new binoculars feature outstanding optical quality further enhanced by a large 45 mm objective diameter and innovative dielectric high-reflective multilayer prism coating.
The O-ring seals and nitrogen gas in the slim body make these binoculars waterproof and fog-free. Rubber coating protects the binocular body and assures a firm and conformable grip. The 8.5x and 10.5x MONARCH X binoculars are available for observing nature such as birds and other animals.
| MONARCH X 8.5x45 DCF |
MONARCH X 10.5x45 DCF |
|
|---|---|---|
| Magnification | 8.5x | 10.5x |
| Objective diameter | 45 mm | 45 mm |
| Angular field of view (real) | 6.3° | 6.3° |
| Angular field of view (apparent)* | 50.1° | 60.0° |
| Field of view at 1,000 m | 110 m | 110 m |
| Exit pupil | 5.3 mm | 4.3 mm |
| Relative brightness | 28.1 | 18.5 |
| Eye relief | 20.6 mm | 16.0 mm |
| Close focusing distance | 3.0 m | 3.0 m |
| Interpupillary distance adjustment | 56-72 mm | 56-72 mm |
| Length | 156 mm | 156 mm |
| Width | 139 mm | 139 mm |
| Weight | 720 g | 730 g |
*Nikon has adopted a calculation method based on ISO 14132-1:2002.
tan ω′ = τ x tan ω
Apparent field of view: 2ω′
Real field of view: 2ω
Magnification: τ
