Kowa Genesis PROMINAR 8.5x44
Model GN44-8
The Kowa Genesis PROMINAR 8.5×44 is a premium full-size roof-prism binocular designed for detailed outdoor observation. It combines 8.5x magnification and 44mm objective lenses with Kowa XD extra-low dispersion glass to help control chromatic aberration and deliver clear, high-contrast views. Its 7° field of view makes it easier to follow birds and wildlife, while the 5.6 ft close-focus distance supports observation of nearby subjects. A waterproof, nitrogen-filled magnesium alloy body adds dependable protection in changing outdoor conditions.
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Key Features
The Kowa Genesis PROMINAR 8.5×44 combines 8.5x magnification, 44mm objective lenses, and premium XD extra-low dispersion glass for detailed outdoor observation. Its wide 7° field of view, 5.6 ft close-focus distance, and waterproof, nitrogen-filled construction make it a versatile choice for birdwatching, wildlife observation, and hunting.
8.5x
Magnification
44 mm
Objective Lens
XD Glass
Optical Design
Waterproof
Weather Protection
367 ft
ft at 1,000 yd (7.0°)
5.6 ft
Minimum Focus Distance
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Quick Specifications
| Specification | Details |
|---|---|
| Magnification | 8.5x |
| Objective Lens Diameter | 44 mm |
| Prism Type | Roof Prism |
| Optical Glass | XD (Extra-Low Dispersion) |
| Field of View | 400 ft at 1,000 yd (7.0°) |
| Exit Pupil | 5.2 mm |
| Eye Relief | 18.5 mm |
| Minimum Focus Distance | 5.6 ft (1.7 m) |
| Waterproof & Fogproof | Yes, nitrogen-filled |
| Weight | 33.2 oz (940 g) |
About This Model
The Kowa Genesis PROMINAR 8.5×44 is a premium full-size roof-prism binocular designed for detailed observation across a variety of outdoor environments. Its 8.5x magnification and 44mm objective lenses are paired with Kowa XD extra-low dispersion glass to help reduce chromatic aberration and preserve image detail. The optical system provides a 7° field of view, equivalent to 400 feet at 1,000 yards, giving users a broad viewing area for following birds and observing wildlife.
The binoculars feature a 5.2mm exit pupil and 18.5mm eye relief, supporting comfortable viewing during extended observation sessions. A minimum focusing distance of approximately 5.6 feet also makes the Genesis PROMINAR 8.5×44 useful for examining nearby subjects. Its magnesium alloy body combines structural strength with a rubber-armored exterior, while the focusing system includes a center focus wheel and a locking diopter adjustment.
Kowa equips this model with waterproof construction and nitrogen filling to protect the internal optics against moisture and internal fogging. Additional optical treatments include phase-corrected prism coatings and Kowa KR protective coating on the lenses. These features make the Genesis PROMINAR 8.5×44 a versatile option for birdwatching, wildlife observation, hunting, and other outdoor activities where optical detail and dependable construction matter.
Full Specifications
Discover the complete Kowa Genesis PROMINAR 8.5×44 specifications, including its 44mm XD objective lenses, 7° field of view, 5.2mm exit pupil, and 18.5mm eye relief. This detailed guide covers optical performance, focusing distance, prism coatings, magnesium alloy construction, waterproof protection, physical dimensions, weight, and included accessories to help you evaluate this premium full-size binocular.
| Specification | Details |
|---|---|
| Model | Kowa Genesis PROMINAR 8.5x44 |
| Manufacturer Model Number | 10820 |
| Product Series | Genesis 44 |
| Magnification | 8.5x |
| Objective Lens Diameter | 44 mm |
| Prism Design | Roof Prism |
| Optical Glass | Kowa XD (Extra-Low Dispersion) Glass |
| XD Lens Elements | 4 Elements (2 Sets) |
| Objective Lens Coating | Fully Coated |
| Prism Coating | Schmidt Prism Phase Coating |
| Lens Protection Coating | Kowa KR Protective Coating |
| Real Field of View | 7.0° |
| Field of View at 1,000 yd | 367.5 ft |
| Field of View at 1,000 m | 122 m |
| Exit Pupil Diameter | 5.2 mm |
| Relative Brightness | 27.0 |
| Twilight Factor | 19.3 |
| Eye Relief | 18.5 mm |
| Minimum Focusing Distance | 5.6 ft (1.7 m) |
| Interpupillary Distance | 59–72 mm |
| Focusing System | Center Focus Wheel |
| Diopter Adjustment | Locking Diopter Adjustment |
| Eyecups | Twist-Up |
| Waterproof Construction | Yes |
| Fogproof Protection | Dry Nitrogen-Filled |
| Body Material | Magnesium Alloy |
| Body Protection | Tough Rubber Armor |
| Manufacturing Origin | Japan |
| Length | 6.5 in (165 mm) |
| Width | 5.4 in (138 mm) |
| Height | 2.5 in (64 mm) |
| Weight | 33.2 oz (940 g) |
| Included Accessories | Carrying Case, Strap, Objective Lens Caps, Eyepiece Caps, Instruction Manual |
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Where to Buy
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