Maven B.2 11x45 specs and field of view
With 11x power, the Maven B.2 model in 11x45 focuses as near as 4.9 ft and spans 314 ft at 1,000 yd.
- Field of view
- 314 ftat 1,000 yd
- Eye relief
- 16.7 mm
- Close focus
- 4.9 ft
- Weight
- 33.3 oz
- Exit pupil
- 4.1 mmcalculated
Why pick it
- 16.7 mm eye relief, enough for glasses
- Focuses as close as 4.9 ft
- Waterproof
Who the B.2 11x45 suits
Suits close, detailed looks, given the short close focus. Its its 16.7 mm eye relief is moderate, and the exit pupil works out to 4.1 mm.
At 33.3 oz it is heavy, and the maker prints no named uses.
B.2 11x45 can be set against the most popular models of every size in the best binoculars list. Maven lists it in the $1,000 to $2,000 price band, alongside the models in best binoculars over $1,000.
B.2 11x45 specifications
B.2 11x45 figures as Maven prints them; rows marked * are calculated from the 11x45 size.
| Magnification | 11x |
|---|---|
| Objective lens | 45 mm |
| Prism type | Roof |
| Field of view | 314 ft at 1,000 yd (105 m at 1,000 m) |
| Angular field of view | 6° |
| Apparent field of view | 66° |
| Eye relief | 16.7 mm |
| Close focus | 4.9 ft (1.5 m) |
| Eye spacing range | 56 to 75 mm |
| Weight | 33.3 oz (943 g) |
| Length | 7.1 in (180 mm) |
| Width | 5.7 in (145 mm) |
| Extra-low dispersion glass | Yes |
| Waterproofing | 1m for 30 min. (IPX7) |
| Fog-proofing gas | Nitrogen |
| Tripod adaptable | Yes |
| Maker list price | $1,000 to $2,000 |
| Exit pupil | 4.1 mm * |
| Twilight factor | 22.2 * |
| Relative brightness | 16.7 * |
* Calculated from the size, not printed by the maker.
Other sizes of the B.2
Maven makes the B.2 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 |
|---|---|---|---|---|---|---|
| Maven B.2 11x45 | 11x45 | 314 ft | 16.7 mm | 4.9 ft | 33.3 oz | 4.1 mm |
| Maven B.2 9x45 | 9x45 | 377 ft | 17.3 mm | 4.9 ft | 33.3 oz | 5 mm |
Maven binoculars
B.2 11x45 questions
B.2 11x45: does it work with glasses?
B.2 11x45 has 16.7 mm of eye relief, which meets the 16 mm the RSPB advises for people who wear glasses.
B.2 11x45: what does 11x45 mean?
B.2 11x45 magnifies 11 times through 45 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.
B.2 11x45: can it go on a tripod?
B.2 11x45 is tripod adaptable according to Maven, so it accepts a binocular tripod adapter.