Kowa Genesis Prominar 8x33 specs and field of view
A 420 ft field of view at 1,000 yd comes in a 20.8 oz body with 4.9 ft close focus. The Genesis Prominar 8x33 uses ED glass and a nitrogen-filled waterproof housing.
- Field of view
- 420 ftat 1,000 yd
- Eye relief
- 15 mm
- Close focus
- 4.9 ft
- Weight
- 20.8 oz
- Exit pupil
- 4.1 mmcalculated
Why pick it
- Focuses as close as 4.9 ft
- Waterproof
- ED glass
Who the Genesis Prominar 8x33 suits
Close focus of 4.9 ft suits butterflies, flowers and other near subjects. The calculated 4.1 mm exit pupil handles general daylight and early evening use.
Eye relief is 15 mm, short for eyeglass wearers, and the maker list price band is $500 to $1,000.
Genesis Prominar 8x33 aside, the most popular models of all sizes are in our best binoculars comparison. Kowa lists it in the $500 to $1,000 price band, alongside the models in best binoculars under $1,000.
Genesis Prominar 8x33 specifications
Genesis Prominar 8x33 figures as Kowa prints them; rows marked * are calculated from the 8x33 size.
| Magnification | 8x |
|---|---|
| Objective lens | 33 mm |
| Field of view | 420 ft at 1,000 yd (140 m at 1,000 m) |
| Angular field of view | 8° |
| Apparent field of view | 64° * |
| Eye relief | 15 mm |
| Close focus | 4.9 ft (1.5 m) |
| Weight | 20.8 oz (590 g) |
| Length | 2 in (133 mm) |
| Width | 5 in (126 mm) |
| Extra-low dispersion glass | Yes |
| Waterproofing | Waterproof, nitrogen filled |
| Fog-proofing gas | Nitrogen |
| Maker list price | $500 to $1,000 |
| Exit pupil | 4.1 mm * |
| Twilight factor | 16.2 * |
| Relative brightness | 17 * |
* Calculated from the size, not printed by the maker.
Genesis Prominar 8x33 against other 8x33 binoculars
Genesis Prominar 8x33 shows 420 ft at 1,000 yd, at or above the 420 ft median of the 3 8x33 models in the chart. At 20.8 oz it is heavier than the 20.1 oz median for the size.
Genesis Prominar 8x33 and its nearest rivals
Genesis Prominar 8x33 next to the 8x33 models closest to it in maker list price, with the best figure in each column in bold.
| Model | Field of view | Eye relief | Close focus | Weight | Exit pupil | Maker list price |
|---|---|---|---|---|---|---|
| Kowa Genesis Prominar 8x33 | 420 ft | 15 mm | 4.9 ft | 20.8 oz | 4.1 mm | $500 to $1,000 |
| Opticron Savanna R PC Oasis 8x33 | 366 ft | 20 mm | 11.5 ft | 15.1 oz | 4.1 mm | $100 to $200 |
| Minox X-active 8x33 | 420 ft | 8.2 ft | 20.1 oz | 4.1 mm |
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 8x33 | 8x33 | 420 ft | 15 mm | 4.9 ft | 20.8 oz | 4.1 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 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 |
| Kowa Genesis Prominar 10.5x44 | 10.5x44 | 326 ft | 16 mm | 5.6 ft | 33.2 oz | 4.2 mm |
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Genesis Prominar 8x33 questions
Genesis Prominar 8x33: does it work with glasses?
Genesis Prominar 8x33 has 15 mm of eye relief, under the 16 mm the RSPB advises for people who wear glasses, so the edge of the view may be cut off with glasses on.
Genesis Prominar 8x33: what does 8x33 mean?
Genesis Prominar 8x33 magnifies 8 times through 33 mm front lenses, which works out to an exit pupil of 4.1 mm, the width of the beam of light that reaches each eye.