Maven B.1.2 10x42 specs and field of view
Close focus of 4.9 ft on the Maven B.1.2 model in 10x42 is well inside the 6.6 ft median for 10x42, and the view spans 347 ft, above the 336 ft median.
- Field of view
- 347 ftat 1,000 yd
- Eye relief
- 17.8 mm
- Close focus
- 4.9 ft
- Weight
- 26.8 oz
- Exit pupil
- 4.2 mmcalculated
Why pick it
- 347 ft view, wider than the typical 336 ft
- 17.8 mm eye relief, enough for glasses
- Focuses as close as 4.9 ft
Who the B.1.2 10x42 suits
Suits close subjects such as insects and garden birds. Eye relief is 17.8 mm, above the 16 mm median, and the exit pupil works out to 4.2 mm.
At 26.8 oz it weighs more than the 24.9 oz median for 10x42, and it sits in the $1,000 to $2,000 band.
B.1.2 10x42 is one choice among many, and the top binoculars compared covers the most popular ones. B.1.2 10x42 is one of 87 models in the 10x42 binoculars comparison. Maven lists it in the $1,000 to $2,000 price band, alongside the models in best binoculars over $1,000.
B.1.2 10x42 specifications
B.1.2 10x42 figures as Maven prints them; rows marked * are calculated from the 10x42 size.
| Magnification | 10x |
|---|---|
| Objective lens | 42 mm |
| Prism type | Roof |
| Field of view | 347 ft at 1,000 yd (116 m at 1,000 m) |
| Angular field of view | 6.6° |
| Apparent field of view | 66° |
| Eye relief | 17.8 mm |
| Close focus | 4.9 ft (1.5 m) |
| Eye spacing range | 56 to 74 mm |
| Weight | 26.8 oz (760 g) |
| Length | 5.7 in (145 mm) |
| Width | 5.2 in (132 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 | 4.2 mm * |
| Twilight factor | 20.5 * |
| Relative brightness | 17.6 * |
* Calculated from the size, not printed by the maker.
B.1.2 10x42 against other 10x42 binoculars
B.1.2 10x42 shows 347 ft at 1,000 yd, at or above the 336 ft median of the 87 10x42 models in the chart. At 26.8 oz it is heavier than the 24.9 oz median for the size.
B.1.2 10x42 and its nearest rivals
B.1.2 10x42 next to the 10x42 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 |
|---|---|---|---|---|---|---|---|
| Maven B.1.2 10x42 | 347 ft | 17.8 mm | 4.9 ft | 26.8 oz | 4.2 mm | $1,000 to $2,000 | |
| Opticron Aurora BGA VHD 10x42 | 348 ft | 18 mm | 6.2 ft | 24.9 oz | 4.2 mm | $1,000 to $2,000 | |
| Leupold BX-5 Santiam HD 10x42 | 341 ft | 16.6 mm | 5 ft | 24.3 oz | 4.2 mm | $1,000 to $2,000 | Check price on Amazon |
| Nikon Monarch HG 10x42 | 363 ft | 17 mm | 6.6 ft | 24 oz | 4.2 mm | $1,000 to $2,000 | Check price on Amazon |
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Other sizes of the B.1.2
Maven makes the B.1.2 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.1.2 10x42 | 10x42 | 347 ft | 17.8 mm | 4.9 ft | 26.8 oz | 4.2 mm |
| Maven B.1.2 8x42 | 8x42 | 420 ft | 18.1 mm | 4.9 ft | 26.8 oz | 5.3 mm |
Maven binoculars
B.1.2 10x42 questions
B.1.2 10x42: does it work with glasses?
B.1.2 10x42 has 17.8 mm of eye relief, which meets the 16 mm the RSPB advises for people who wear glasses.
B.1.2 10x42: what does 10x42 mean?
B.1.2 10x42 magnifies 10 times through 42 mm front lenses, which works out to an exit pupil of 4.2 mm, the width of the beam of light that reaches each eye.
B.1.2 10x42: how wide is the view?
B.1.2 10x42 shows a view 347 ft wide at 1,000 yd, at or above the 336 ft median of the 87 10x42 models in the chart.
B.1.2 10x42: can it go on a tripod?
B.1.2 10x42 is tripod adaptable according to Maven, so it accepts a binocular tripod adapter.