Nikon ProStaff 8x25 ATB specs and field of view
Eye relief of 15.5 mm on the ProStaff 8x25 ATB tops the 15 mm median for 8x25, and close focus is 9.2 ft in a 12.5 oz porro body.
- Field of view
- 330 ftat 1,000 yd
- Eye relief
- 15.5 mm
- Close focus
- 9.2 ft
- Weight
- 12.5 oz
- Exit pupil
- 3.1 mmcalculated
Why pick it
- Waterproof
Who the ProStaff 8x25 ATB suits
The 15.5 mm eye relief and 9.2 ft close focus suit hikers who want a waterproof, fogproof pair, with a maker list price band of $100 to $200.
The 330 ft field is under the 357 ft median, and 12.5 oz is above the 10.9 oz median.
ProStaff 8x25 ATB can be set against the most popular models of every size in the best binoculars list. ProStaff 8x25 ATB is one of 21 models in the 8x25 binoculars comparison. Nikon lists it in the $100 to $200 price band, alongside the models in best binoculars under $200.
ProStaff 8x25 ATB specifications
ProStaff 8x25 ATB figures as Nikon prints them; rows marked * are calculated from the 8x25 size.
| Magnification | 8x |
|---|---|
| Objective lens | 25 mm |
| Prism type | Porro |
| Field of view | 330 ft at 1,000 yd (110 m at 1,000 m) |
| Angular field of view | 6.3° |
| Apparent field of view | 47.5° |
| Eye relief | 15.5 mm |
| Close focus | 9.2 ft (2.8 m) |
| Eye spacing range | 56 to 72 mm |
| Weight | 12.5 oz (354 g) |
| Length | 3.9 in (99 mm) |
| Width | 4.5 in (114 mm) |
| Waterproofing | Waterproof |
| Focus system | Center focus |
| Maker list price | $100 to $200 |
| Exit pupil | 3.1 mm * |
| Twilight factor | 14.1 * |
| Relative brightness | 9.8 * |
* Calculated from the size, not printed by the maker.
ProStaff 8x25 ATB against other 8x25 binoculars
ProStaff 8x25 ATB shows 330 ft at 1,000 yd, below the 357 ft median of the 21 8x25 models in the chart. At 12.5 oz it is heavier than the 10.9 oz median for the size.
ProStaff 8x25 ATB and its nearest rivals
ProStaff 8x25 ATB next to the 8x25 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 ProStaff 8x25 ATB | 330 ft | 15.5 mm | 9.2 ft | 12.5 oz | 3.1 mm | $100 to $200 | |
| Hawke Nature-Trek Compact 8x25 | 356 ft | 13 mm | 6.6 ft | 10.4 oz | 3.1 mm | $100 to $200 | Check price on Amazon |
| Pentax AD 8x25 WP | 288 ft | 21 mm | 9.8 ft | 10.6 oz | 3.1 mm | $100 to $200 | |
| Nikon Trailblazer 8x25 ATB | 429 ft | 10 mm | 8.2 ft | 9.9 oz | 3.1 mm | $100 to $200 |
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Other sizes of the ProStaff ATB
Nikon makes the ProStaff ATB in 2 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 ProStaff 8x25 ATB | 8x25 | 330 ft | 15.5 mm | 9.2 ft | 12.5 oz | 3.1 mm |
| Nikon ProStaff 10x25 ATB | 10x25 | 262 ft | 15.9 mm | 9.2 ft | 12.9 oz | 2.5 mm |
Nikon binoculars
ProStaff 8x25 ATB questions
ProStaff 8x25 ATB: does it work with glasses?
ProStaff 8x25 ATB has 15.5 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.
ProStaff 8x25 ATB: what does 8x25 mean?
ProStaff 8x25 ATB magnifies 8 times through 25 mm front lenses, which works out to an exit pupil of 3.1 mm, the width of the beam of light that reaches each eye.
ProStaff 8x25 ATB: how wide is the view?
ProStaff 8x25 ATB shows a view 330 ft wide at 1,000 yd, below the 357 ft median of the 21 8x25 models in the chart.