Leupold BX-4 Pro Guide HD Gen 2 10x50 specs and field of view
With 19 mm of eye relief against a 17.4 mm median, this BX-4 Pro Guide HD Gen 2 gives glasses wearers more room than the size median. Its exit pupil works out to 5 mm.
- Field of view
- 299 ftat 1,000 yd
- Eye relief
- 19 mm
- Close focus
- 9.3 ft
- Weight
- 28.7 oz
- Exit pupil
- 5 mmcalculated
Why pick it
- 28.7 oz, lighter than the typical 29.3 oz
- 19 mm eye relief, enough for glasses
- Waterproof
Who the BX-4 Pro Guide HD Gen 2 10x50 suits
Dusk glassing gets a 5 mm exit pupil, and the 19 mm eye relief suits eyeglass wearers. At 28.7 oz it is lighter than the 29.3 oz median for the size.
Its 299 ft field at 1,000 yd sits 32nd of 40, narrower than the 315 ft median, and close focus is 9.3 ft.
BX-4 Pro Guide HD Gen 2 10x50 is one choice among many, and the top binoculars compared covers the most popular ones. BX-4 Pro Guide HD Gen 2 10x50 is one of 40 models in the 10x50 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 10x50 specifications
BX-4 Pro Guide HD Gen 2 10x50 figures as Leupold prints them; rows marked * are calculated from the 10x50 size.
| Magnification | 10x |
|---|---|
| Objective lens | 50 mm |
| Prism type | Roof |
| Field of view | 299 ft at 1,000 yd (100 m at 1,000 m) |
| Angular field of view | 5.7° |
| Apparent field of view | 57° * |
| Eye relief | 19 mm |
| Close focus | 9.3 ft (2.8 m) |
| Eye spacing range | 56 to 74 mm |
| Weight | 28.7 oz (814 g) |
| Waterproofing | Waterproof and fogproof |
| Tripod adaptable | Yes |
| Focus system | Center focus |
| Maker list price | $500 to $1,000 |
| Exit pupil | 5 mm * |
| Twilight factor | 22.4 * |
| Relative brightness | 25 * |
* Calculated from the size, not printed by the maker.
BX-4 Pro Guide HD Gen 2 10x50 against other 10x50 binoculars
BX-4 Pro Guide HD Gen 2 10x50 shows 299 ft at 1,000 yd, below the 315 ft median of the 40 10x50 models in the chart. At 28.7 oz it is at or under the 29.3 oz median weight for the size.
BX-4 Pro Guide HD Gen 2 10x50 and its nearest rivals
BX-4 Pro Guide HD Gen 2 10x50 next to the 10x50 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 |
|---|---|---|---|---|---|---|---|
| Leupold BX-4 Pro Guide HD Gen 2 10x50 | 299 ft | 19 mm | 9.3 ft | 28.7 oz | 5 mm | $500 to $1,000 | |
| Bushnell R7 10x50 | 340 ft | 19 mm | 7 ft | 32.7 oz | 5 mm | $500 to $1,000 | Check price on Amazon |
| Steiner Military-Marine 10x50 | 327 ft | 16 mm | 66 ft | 35.3 oz | 5 mm | $500 to $1,000 | Check price on Amazon |
| Kowa BD III 10x50 XD | 346 ft | 17 mm | 9.8 ft | 25.5 oz | 5 mm | $500 to $1,000 |
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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 10x50 | 10x50 | 299 ft | 19 mm | 9.3 ft | 28.7 oz | 5 mm |
| 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 12x50 | 12x50 | 257 ft | 16 mm | 10 ft | 29.3 oz | 4.2 mm |
Leupold binoculars
BX-4 Pro Guide HD Gen 2 10x50 questions
BX-4 Pro Guide HD Gen 2 10x50: does it work with glasses?
BX-4 Pro Guide HD Gen 2 10x50 has 19 mm of eye relief, which meets the 16 mm the RSPB advises for people who wear glasses.
BX-4 Pro Guide HD Gen 2 10x50: what does 10x50 mean?
BX-4 Pro Guide HD Gen 2 10x50 magnifies 10 times through 50 mm front lenses, which works out to an exit pupil of 5 mm, the width of the beam of light that reaches each eye.
BX-4 Pro Guide HD Gen 2 10x50: how wide is the view?
BX-4 Pro Guide HD Gen 2 10x50 shows a view 299 ft wide at 1,000 yd, below the 315 ft median of the 40 10x50 models in the chart.
BX-4 Pro Guide HD Gen 2 10x50: can it go on a tripod?
BX-4 Pro Guide HD Gen 2 10x50 is tripod adaptable according to Leupold, so it accepts a binocular tripod adapter.