Kowa Genesis Prominar 10.5x44 specs and field of view
The Genesis Prominar 10.5x44 weighs 33.2 oz and pairs 10.5x power with a 326 ft field of view at 1,000 yd. Eye relief is 16 mm.
- Field of view
- 326 ftat 1,000 yd
- Eye relief
- 16 mm
- Close focus
- 5.6 ft
- Weight
- 33.2 oz
- Exit pupil
- 4.2 mmcalculated
Why pick it
- 16 mm eye relief, enough for glasses
- Focuses as close as 5.6 ft
- Waterproof
Who the Genesis Prominar 10.5x44 suits
The 16 mm eye relief suits eyeglass wearers who want more power than 10x. The calculated 4.2 mm exit pupil and 44 mm lenses fit open country and distant birds.
Weight of 33.2 oz and a 5.6 ft close focus make it a tripod or strap choice, and the band is $1,000 to $2,000.
Genesis Prominar 10.5x44 is one choice among many, and the top binoculars compared covers the most popular ones. Kowa lists it in the $1,000 to $2,000 price band, alongside the models in best binoculars over $1,000.
Genesis Prominar 10.5x44 specifications
Genesis Prominar 10.5x44 figures as Kowa prints them; rows marked * are calculated from the 10.5x44 size.
| Magnification | 10.5x |
|---|---|
| Objective lens | 44 mm |
| Field of view | 326 ft at 1,000 yd (108 m at 1,000 m) |
| Angular field of view | 6.2° |
| Apparent field of view | 65° * |
| Eye relief | 16 mm |
| Close focus | 5.6 ft (1.7 m) |
| Weight | 33.2 oz (960 g) |
| Length | 2.5 in (165 mm) |
| Width | 5.4 in (138 mm) |
| Extra-low dispersion glass | Yes |
| Waterproofing | Waterproof, nitrogen filled |
| Fog-proofing gas | Nitrogen |
| Maker list price | $1,000 to $2,000 |
| Exit pupil | 4.2 mm * |
| Twilight factor | 21.5 * |
| Relative brightness | 17.6 * |
* Calculated from the size, not printed by the maker.
Other sizes of the Genesis
Kowa makes the Genesis in 6 sizes; a larger front lens adds brightness and weight, and more magnification narrows the view.
| Model | Size | Field of view | Eye relief | Close focus | Weight | Exit pupil | Amazon |
|---|---|---|---|---|---|---|---|
| Kowa Genesis Prominar 10.5x44 | 10.5x44 | 326 ft | 16 mm | 5.6 ft | 33.2 oz | 4.2 mm | |
| Kowa Genesis Prominar XD22 8x22 | 8x22 | 429 ft | 18.5 mm | 4.9 ft | 11.1 oz | 2.8 mm | Check price on Amazon |
| Kowa Genesis Prominar XD22 10x22 | 10x22 | 344 ft | 16 mm | 4.9 ft | 11.5 oz | 2.2 mm | Check price on Amazon |
| Kowa Genesis Prominar 8x33 | 8x33 | 420 ft | 15 mm | 4.9 ft | 20.8 oz | 4.1 mm | |
| Kowa Genesis Prominar 10x33 | 10x33 | 357 ft | 15 mm | 4.9 ft | 20.8 oz | 3.3 mm | Check price on Amazon |
| Kowa Genesis Prominar 8.5x44 | 8.5x44 | 368 ft | 18.5 mm | 5.6 ft | 33.2 oz | 5.2 mm | Check price on Amazon |
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Kowa binoculars
Genesis Prominar 10.5x44 questions
Genesis Prominar 10.5x44: does it work with glasses?
Genesis Prominar 10.5x44 has 16 mm of eye relief, which meets the 16 mm the RSPB advises for people who wear glasses.
Genesis Prominar 10.5x44: what does 10.5x44 mean?
Genesis Prominar 10.5x44 magnifies 10.5 times through 44 mm front lenses, which works out to an exit pupil of 4.2 mm, the width of the beam of light that reaches each eye.