Nikon Action EX 10x50 CF specs and field of view
The Action EX 10x50 CF has a 342 ft field, wide for the size, at place 10 of 40 against a 315 ft median.
- Field of view
- 342 ftat 1,000 yd
- Eye relief
- 17.2 mm
- Close focus
- 23 ft
- Weight
- 36 oz
- Exit pupil
- 5 mmcalculated
Why pick it
- 342 ft view, wider than the typical 315 ft
- 17.2 mm eye relief, enough for glasses
- Waterproof
Who the Action EX 10x50 CF suits
With a calculated 5 mm exit pupil and a 342 ft field, it suits open ground at dusk. A 17.2 mm eye relief clears eyeglasses.
At 36 oz it is heavy against the 29.3 oz median, and the 23 ft close focus leaves nearby subjects out of reach.
Action EX 10x50 CF or another model: the best binoculars by maker figures shows how the popular ones differ. Action EX 10x50 CF is one of 40 models in the 10x50 binoculars comparison.
Action EX 10x50 CF specifications
Action EX 10x50 CF figures as Nikon prints them; rows marked * are calculated from the 10x50 size.
| Magnification | 10x |
|---|---|
| Objective lens | 50 mm |
| Prism type | Porro |
| Field of view | 342 ft at 1,000 yd (114 m at 1,000 m) |
| Angular field of view | 6.5° |
| Apparent field of view | 59.2° |
| Eye relief | 17.2 mm |
| Close focus | 23 ft (7 m) |
| Eye spacing range | 56 to 72 mm |
| Weight | 36 oz (1,020 g) |
| Length | 7 in (178 mm) |
| Width | 7.7 in (196 mm) |
| Waterproofing | Up to 1 m / 3.3 ft for 5 minutes |
| Fog-proofing gas | Nitrogen |
| Tripod adaptable | Yes |
| Focus system | Center focus |
| Exit pupil | 5 mm * |
| Twilight factor | 22.4 * |
| Relative brightness | 25 * |
* Calculated from the size, not printed by the maker.
Action EX 10x50 CF against other 10x50 binoculars
Action EX 10x50 CF shows 342 ft at 1,000 yd, at or above the 315 ft median of the 40 10x50 models in the chart. At 36 oz it is heavier than the 29.3 oz median for the size.
Action EX 10x50 CF and its nearest rivals
Action EX 10x50 CF next to the 10x50 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 | Amazon |
|---|---|---|---|---|---|---|---|
| Nikon Action EX 10x50 CF | 342 ft | 17.2 mm | 23 ft | 36 oz | 5 mm | ||
| Bushnell PowerView 2 10x50 | 344 ft | 16 mm | 25 ft | 27.8 oz | 5 mm | ||
| Bushnell Spectator Sport 10x50 | 298 ft | 17 mm | 31 oz | 5 mm | Check price on Amazon | ||
| Bushnell Engage EDX 10x50 | 340 ft | 15 mm | 10 ft | 29.2 oz | 5 mm |
Binocular Chart earns a commission from qualifying Amazon purchases made through these buttons.
Other sizes of the Action EX
Nikon makes the Action EX 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 |
|---|---|---|---|---|---|---|
| Nikon Action EX 10x50 CF | 10x50 | 342 ft | 17.2 mm | 23 ft | 36 oz | 5 mm |
| Nikon Action EX 7x35 CF | 7x35 | 489 ft | 17.3 mm | 16.4 ft | 28.2 oz | 5 mm |
| Nikon Action EX 8x40 CF | 8x40 | 429 ft | 17.2 mm | 16.4 ft | 30.2 oz | 5 mm |
| Nikon Action EX 7x50 CF | 7x50 | 336 ft | 17.1 mm | 23 ft | 35.3 oz | 7.1 mm |
| Nikon Action EX 12x50 CF | 12x50 | 288 ft | 16.1 mm | 23 ft | 36.9 oz | 4.2 mm |
| Nikon Action EX 16x50 CF | 16x50 | 183 ft | 17.8 mm | 23 ft | 36.7 oz | 3.1 mm |
Nikon binoculars
Action EX 10x50 CF questions
Action EX 10x50 CF: does it work with glasses?
Action EX 10x50 CF has 17.2 mm of eye relief, which meets the 16 mm the RSPB advises for people who wear glasses.
Action EX 10x50 CF: what does 10x50 mean?
Action EX 10x50 CF magnifies 10 times through 50 mm front lenses, which works out to an exit pupil of 5 mm, the width of the beam of light that reaches each eye.
Action EX 10x50 CF: how wide is the view?
Action EX 10x50 CF shows a view 342 ft wide at 1,000 yd, at or above the 315 ft median of the 40 10x50 models in the chart.
Action EX 10x50 CF: can it go on a tripod?
Action EX 10x50 CF is tripod adaptable according to Nikon, so it accepts a binocular tripod adapter.