Nikon Aculon T02 10x21 specs and field of view
At 6.9 oz, the Aculon T02 is a pocket-weight Nikon with a 262 ft field at 1,000 yd.
- Field of view
- 262 ftat 1,000 yd
- Eye relief
- 8.3 mm
- Close focus
- 9.8 ft
- Weight
- 6.9 oz
- Exit pupil
- 2.1 mmcalculated
Why pick it
- Widest view of the 2: 262 ft
- Lightest of the 2: 6.9 oz
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Who the Aculon T02 10x21 suits
The 6.9 oz weight and 9.8 ft close focus suit a coat pocket, and the maker list price band is under $100. It has center focus and roof prisms.
Eye relief is only 8.3 mm and the calculated exit pupil is 2.1 mm, which limits glasses wearers and low light.
Aculon T02 10x21 aside, the most popular models of all sizes are in our best binoculars comparison. Nikon lists it in the under $100 price band, alongside the models in best binoculars under $100.
Aculon T02 10x21 specifications
Aculon T02 10x21 figures as Nikon prints them; rows marked * are calculated from the 10x21 size.
| Magnification | 10x |
|---|---|
| Objective lens | 21 mm |
| Prism type | Roof |
| Field of view | 262 ft at 1,000 yd (87 m at 1,000 m) |
| Angular field of view | 5° |
| Apparent field of view | 47.2° |
| Eye relief | 8.3 mm |
| Close focus | 9.8 ft (3 m) |
| Eye spacing range | 56 to 72 mm |
| Weight | 6.9 oz (195 g) |
| Length | 3.4 in (87 mm) |
| Width | 4.1 in (104 mm) |
| Focus system | Center focus |
| Maker list price | under $100 |
| Exit pupil | 2.1 mm * |
| Twilight factor | 14.5 * |
| Relative brightness | 4.4 * |
* Calculated from the size, not printed by the maker.
Aculon T02 10x21 and its nearest rivals
Aculon T02 10x21 next to the 10x21 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 Aculon T02 10x21 | 262 ft | 8.3 mm | 9.8 ft | 6.9 oz | 2.1 mm | under $100 | Check price on Amazon |
| Nikon Aculon W10 10x21 | 261 ft | 8.3 mm | 9.8 ft | 7.6 oz | 2.1 mm |
Other sizes of the Aculon T02
Nikon makes the Aculon T02 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 | Amazon |
|---|---|---|---|---|---|---|---|
| Nikon Aculon T02 10x21 | 10x21 | 262 ft | 8.3 mm | 9.8 ft | 6.9 oz | 2.1 mm | Check price on Amazon |
| Nikon Aculon T02 8x21 | 8x21 | 330 ft | 10.3 mm | 9.8 ft | 6.9 oz | 2.6 mm | Check price on Amazon |
Nikon binoculars
Aculon T02 10x21 questions
Aculon T02 10x21: does it work with glasses?
Aculon T02 10x21 has 8.3 mm of eye relief, well short of the 16 mm the RSPB advises for people who wear glasses.
Aculon T02 10x21: what does 10x21 mean?
Aculon T02 10x21 magnifies 10 times through 21 mm front lenses, which works out to an exit pupil of 2.1 mm, the width of the beam of light that reaches each eye.