Vortex Triumph HD 10x28 specs and field of view
Weight of 12.8 oz sits just above the 12.7 oz median of its size. The Triumph HD 10x28 has a 279 ft field of view that places second among the 5 models of the 10x28 size.
- Field of view
- 279 ftat 1,000 yd
- Eye relief
- 15 mm
- Close focus
- 9.9 ft
- Weight
- 12.8 oz
- Exit pupil
- 2.8 mmcalculated
Why pick it
- 279 ft view, wider than the typical 273 ft
- Takes a tripod adapter
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Who the Triumph HD 10x28 suits
At 12.8 oz it rides easily on a neck strap for long carries. The 15 mm eye relief equals the median of its size. The maker prints it as tripod adaptable and names hunting as a use, at a list price band of $100 to $200.
The close focus is 9.9 ft and the exit pupil works out to 2.8 mm, so dim light and nearby subjects are weak points.
Triumph HD 10x28 can be set against the most popular models of every size in the best binoculars list. Triumph HD 10x28 is one of 5 models in the 10x28 binoculars comparison. Vortex lists it in the $100 to $200 price band, alongside the models in best binoculars under $200.
Triumph HD 10x28 specifications
Triumph HD 10x28 figures as Vortex prints them; rows marked * are calculated from the 10x28 size.
| Magnification | 10x |
|---|---|
| Objective lens | 28 mm |
| Prism type | Roof |
| Field of view | 279 ft at 1,000 yd (93 m at 1,000 m) |
| Angular field of view | 5.2° |
| Apparent field of view | 52° * |
| Eye relief | 15 mm |
| Close focus | 9.9 ft (3 m) |
| Eye spacing range | 56 to 73 mm |
| Weight | 12.8 oz (363 g) |
| Length | 5 in (127 mm) |
| Width | 4.8 in (122 mm) |
| Fog-proofing gas | Nitrogen |
| Tripod adaptable | Yes |
| Focus system | Center focus |
| Maker list price | $100 to $200 |
| Exit pupil | 2.8 mm * |
| Twilight factor | 16.7 * |
| Relative brightness | 7.8 * |
* Calculated from the size, not printed by the maker.
Triumph HD 10x28 against other 10x28 binoculars
Triumph HD 10x28 shows 279 ft at 1,000 yd, at or above the 273 ft median of the 5 10x28 models in the chart. At 12.8 oz it is heavier than the 12.7 oz median for the size.
Triumph HD 10x28 and its nearest rivals
Triumph HD 10x28 next to the 10x28 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 |
|---|---|---|---|---|---|---|---|
| Vortex Triumph HD 10x28 | 279 ft | 15 mm | 9.9 ft | 12.8 oz | 2.8 mm | $100 to $200 | Check price on Amazon |
| Vortex Diamondback HD 10x28 | 273 ft | 16 mm | 6 ft | 13.3 oz | 2.8 mm | $200 to $500 | Check price on Amazon |
| Maven C.2 10x28 | 262 ft | 15 mm | 9.8 ft | 12.6 oz | 2.8 mm | $200 to $500 | Check price on Amazon |
| GPO Passion SD 10x26 | 293 ft | 14.1 mm | 9.8 ft | 11.6 oz | 2.8 mm | $200 to $500 |
Other sizes of the Triumph HD
Vortex makes the Triumph HD in 3 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 |
|---|---|---|---|---|---|---|---|
| Vortex Triumph HD 10x28 | 10x28 | 279 ft | 15 mm | 9.9 ft | 12.8 oz | 2.8 mm | Check price on Amazon |
| Vortex Triumph HD 10x42 | 10x42 | 334 ft | 17 mm | 15.3 ft | 22.9 oz | 4.2 mm | Check price on Amazon |
| Vortex Triumph HD 12x50 | 12x50 | 273 ft | 16 mm | 9.9 ft | 26.2 oz | 4.2 mm | Check price on Amazon |
Lists that include the Triumph HD 10x28
Vortex binoculars
Triumph HD 10x28 questions
Triumph HD 10x28: does it work with glasses?
Triumph HD 10x28 has 15 mm of eye relief, under the 16 mm the RSPB advises for people who wear glasses, so the edge of the view may be cut off with glasses on.
Triumph HD 10x28: what does 10x28 mean?
Triumph HD 10x28 magnifies 10 times through 28 mm front lenses, which works out to an exit pupil of 2.8 mm, the width of the beam of light that reaches each eye.
Triumph HD 10x28: how wide is the view?
Triumph HD 10x28 shows a view 279 ft wide at 1,000 yd, at or above the 273 ft median of the 5 10x28 models in the chart.
Triumph HD 10x28: can it go on a tripod?
Triumph HD 10x28 is tripod adaptable according to Vortex, so it accepts a binocular tripod adapter.