GPO Passion HD 10x50 specs and field of view
Eye relief on the Passion HD 10x50 reaches 19.5 mm, against a 17.4 mm median for the size. Its calculated exit pupil is 5 mm.
- Field of view
- 309 ftat 1,000 yd
- Eye relief
- 19.5 mm
- Close focus
- 9.8 ft
- Weight
- 33.9 oz
- Exit pupil
- 5 mmcalculated
Why pick it
- 19.5 mm eye relief, enough for glasses
- Waterproof
Who the Passion HD 10x50 suits
Dusk and dawn watching suit the 5 mm exit pupil, and the long eye relief gives room for glasses. The twilight factor works out to 22.4.
At 33.9 oz it is heavier than the 29.3 oz median, and the 9.8 ft close focus rules out near subjects.
Passion HD 10x50 or another model: the best binoculars by maker figures shows how the popular ones differ. Passion HD 10x50 is one of 40 models in the 10x50 binoculars comparison. GPO lists it in the $1,000 to $2,000 price band, alongside the models in best binoculars over $1,000.
Passion HD 10x50 specifications
Passion HD 10x50 figures as GPO prints them; rows marked * are calculated from the 10x50 size.
| Magnification | 10x |
|---|---|
| Objective lens | 50 mm |
| Prism type | Roof |
| Field of view | 309 ft at 1,000 yd (103 m at 1,000 m) |
| Angular field of view | 5.9° |
| Apparent field of view | 59° * |
| Eye relief | 19.5 mm |
| Close focus | 9.8 ft (3 m) |
| Eye spacing range | 58 to 76 mm |
| Weight | 33.9 oz (961 g) |
| Waterproofing | Waterproof and fogproof |
| Maker list price | $1,000 to $2,000 |
| Exit pupil | 5 mm * |
| Twilight factor | 22.4 * |
| Relative brightness | 25 * |
* Calculated from the size, not printed by the maker.
Passion HD 10x50 against other 10x50 binoculars
Passion HD 10x50 shows 309 ft at 1,000 yd, below the 315 ft median of the 40 10x50 models in the chart. At 33.9 oz it is heavier than the 29.3 oz median for the size.
Passion HD 10x50 and its nearest rivals
Passion HD 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 |
|---|---|---|---|---|---|---|---|
| GPO Passion HD 10x50 | 309 ft | 19.5 mm | 9.8 ft | 33.9 oz | 5 mm | $1,000 to $2,000 | |
| Maven B.6 10x50 | 341 ft | 18.1 mm | 7.5 ft | 30.7 oz | 5 mm | $1,000 to $2,000 | Check price on Amazon |
| Leupold BX-5 Santiam HD 10x50 | 304 ft | 19.3 mm | 11.4 ft | 31.5 oz | 5 mm | $1,000 to $2,000 | Check price on Amazon |
| Vortex Razor HD 10x50 | 315 ft | 16.5 mm | 10 ft | 28.1 oz | 5 mm | $1,000 to $2,000 |
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Other sizes of the Passion HD
GPO makes the Passion HD in 6 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 |
|---|---|---|---|---|---|---|---|
| GPO Passion HD 10x50 | 10x50 | 309 ft | 19.5 mm | 9.8 ft | 33.9 oz | 5 mm | |
| GPO Passion HD 8x42 | 8x42 | 375 ft | 19.5 mm | 6.5 ft | 29.3 oz | 5.3 mm | |
| GPO Passion HD 10x42 | 10x42 | 366 ft | 17 mm | 6.5 ft | 29.6 oz | 4.2 mm | |
| GPO Passion HD 8.5x50 | 8.5x50 | 315 ft | 19.5 mm | 9.8 ft | 33.2 oz | 5.9 mm | |
| GPO Passion HD 12.5x50 | 12.5x50 | 286 ft | 16.5 mm | 9.8 ft | 34.1 oz | 4 mm | Check price on Amazon |
| GPO Passion HD 15x50 | 15x50 | 266 ft | 16.5 mm | 9.8 ft | 34.1 oz | 3.3 mm | Check price on Amazon |
GPO binoculars
Passion HD 10x50 questions
Passion HD 10x50: does it work with glasses?
Passion HD 10x50 has 19.5 mm of eye relief, which meets the 16 mm the RSPB advises for people who wear glasses.
Passion HD 10x50: what does 10x50 mean?
Passion HD 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.
Passion HD 10x50: how wide is the view?
Passion HD 10x50 shows a view 309 ft wide at 1,000 yd, below the 315 ft median of the 40 10x50 models in the chart.