Leupold BX-4 Pro Guide HD Gen 2 8x42 specs and field of view
The BX-4 Pro Guide HD Gen 2 8x42 has a 376 ft field at 1,000 yd, 51st of 75, because the 8x42 median is 393 ft. Eye relief is 18 mm, matching the size median.
- Field of view
- 376 ftat 1,000 yd
- Eye relief
- 18 mm
- Close focus
- 8.7 ft
- Weight
- 24.5 oz
- Exit pupil
- 5.3 mmcalculated
Why pick it
- 18 mm eye relief, enough for glasses
- Waterproof
- Takes a tripod adapter
Who the BX-4 Pro Guide HD Gen 2 8x42 suits
At dusk the 5.3 mm exit pupil, which works out from the size, helps. Glasses wearers get 18 mm of eye relief, and the 24.5 oz weight stays near the 24.2 oz median.
Close focus of 8.7 ft is longer than the 6.6 ft median, so nearby subjects need more distance.
BX-4 Pro Guide HD Gen 2 8x42 or another model: the best binoculars by maker figures shows how the popular ones differ. BX-4 Pro Guide HD Gen 2 8x42 is one of 75 models in the 8x42 binoculars comparison. Leupold lists it in the $500 to $1,000 price band, alongside the models in best binoculars under $1,000.
BX-4 Pro Guide HD Gen 2 8x42 specifications
BX-4 Pro Guide HD Gen 2 8x42 figures as Leupold prints them; rows marked * are calculated from the 8x42 size.
| Magnification | 8x |
|---|---|
| Objective lens | 42 mm |
| Prism type | Roof |
| Field of view | 376 ft at 1,000 yd (125 m at 1,000 m) |
| Angular field of view | 7° |
| Apparent field of view | 56° * |
| Eye relief | 18 mm |
| Close focus | 8.7 ft (2.7 m) |
| Eye spacing range | 56 to 74 mm |
| Weight | 24.5 oz (695 g) |
| Waterproofing | Waterproof and fogproof |
| Tripod adaptable | Yes |
| Focus system | Center focus |
| Maker list price | $500 to $1,000 |
| Exit pupil | 5.3 mm * |
| Twilight factor | 18.3 * |
| Relative brightness | 27.6 * |
* Calculated from the size, not printed by the maker.
BX-4 Pro Guide HD Gen 2 8x42 against other 8x42 binoculars
BX-4 Pro Guide HD Gen 2 8x42 shows 376 ft at 1,000 yd, below the 393 ft median of the 75 8x42 models in the chart. At 24.5 oz it is heavier than the 24.2 oz median for the size.
BX-4 Pro Guide HD Gen 2 8x42 and its nearest rivals
BX-4 Pro Guide HD Gen 2 8x42 next to the 8x42 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 |
|---|---|---|---|---|---|---|
| Leupold BX-4 Pro Guide HD Gen 2 8x42 | 376 ft | 18 mm | 8.7 ft | 24.5 oz | 5.3 mm | $500 to $1,000 |
| OM System 8x42 PRO | 395 ft | 18 mm | 4.9 ft | 5.3 mm | $500 to $1,000 | |
| Hawke Frontier ED X 8x42 | 426 ft | 18 mm | 6.6 ft | 25.6 oz | 5.3 mm | $500 to $1,000 |
| Hawke Frontier ED X Gen 2 8x42 | 426 ft | 22 mm | 4.9 ft | 27.9 oz | 5.3 mm | $500 to $1,000 |
Other sizes of the BX-4 Pro Guide HD Gen 2
Leupold makes the BX-4 Pro Guide HD Gen 2 in 4 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 |
|---|---|---|---|---|---|---|
| Leupold BX-4 Pro Guide HD Gen 2 8x42 | 8x42 | 376 ft | 18 mm | 8.7 ft | 24.5 oz | 5.3 mm |
| Leupold BX-4 Pro Guide HD Gen 2 10x42 | 10x42 | 314 ft | 17 mm | 9.3 ft | 25 oz | 4.2 mm |
| Leupold BX-4 Pro Guide HD Gen 2 10x50 | 10x50 | 299 ft | 19 mm | 9.3 ft | 28.7 oz | 5 mm |
| Leupold BX-4 Pro Guide HD Gen 2 12x50 | 12x50 | 257 ft | 16 mm | 10 ft | 29.3 oz | 4.2 mm |
Leupold binoculars
BX-4 Pro Guide HD Gen 2 8x42 questions
BX-4 Pro Guide HD Gen 2 8x42: does it work with glasses?
BX-4 Pro Guide HD Gen 2 8x42 has 18 mm of eye relief, which meets the 16 mm the RSPB advises for people who wear glasses.
BX-4 Pro Guide HD Gen 2 8x42: what does 8x42 mean?
BX-4 Pro Guide HD Gen 2 8x42 magnifies 8 times through 42 mm front lenses, which works out to an exit pupil of 5.3 mm, the width of the beam of light that reaches each eye.
BX-4 Pro Guide HD Gen 2 8x42: how wide is the view?
BX-4 Pro Guide HD Gen 2 8x42 shows a view 376 ft wide at 1,000 yd, below the 393 ft median of the 75 8x42 models in the chart.
BX-4 Pro Guide HD Gen 2 8x42: can it go on a tripod?
BX-4 Pro Guide HD Gen 2 8x42 is tripod adaptable according to Leupold, so it accepts a binocular tripod adapter.