Opticron Oregon 4 PC Oasis 10x50 specs and field of view
With 22 mm of eye relief against a 17.4 mm median, the Oregon 4 PC Oasis 10x50 is generous to eyeglass wearers. Its 240 ft field places 40th of 40.
- Field of view
- 240 ftat 1,000 yd
- Eye relief
- 22 mm
- Close focus
- 8.2 ft
- Weight
- 29.8 oz
- Exit pupil
- 5 mmcalculated
Why pick it
- Longest eye relief of the 40: 22 mm
- Focuses as close as 8.2 ft
- Waterproof
Who the Oregon 4 PC Oasis 10x50 suits
Dusk and low light suit the exit pupil of 5 mm, which works out from the size. The 29.8 oz weight is close to the 29.3 oz median.
The 240 ft field is the narrowest among the 40 models of its size, and close focus is 8.2 ft.
Oregon 4 PC Oasis 10x50 or another model: the best binoculars by maker figures shows how the popular ones differ. Oregon 4 PC Oasis 10x50 is one of 40 models in the 10x50 binoculars comparison. Opticron lists it in the $200 to $500 price band, alongside the models in best binoculars under $500.
Oregon 4 PC Oasis 10x50 specifications
Oregon 4 PC Oasis 10x50 figures as Opticron prints them; rows marked * are calculated from the 10x50 size.
| Magnification | 10x |
|---|---|
| Objective lens | 50 mm |
| Field of view | 240 ft at 1,000 yd (80 m at 1,000 m) |
| Angular field of view | 4.6° |
| Apparent field of view | 46° * |
| Eye relief | 22 mm |
| Close focus | 8.2 ft (2.5 m) |
| Eye spacing range | 61 to 74 mm |
| Weight | 29.8 oz (845 g) |
| Waterproofing | Waterproof |
| Maker list price | $200 to $500 |
| Exit pupil | 5 mm * |
| Twilight factor | 22.4 * |
| Relative brightness | 25 * |
* Calculated from the size, not printed by the maker.
Oregon 4 PC Oasis 10x50 against other 10x50 binoculars
Oregon 4 PC Oasis 10x50 shows 240 ft at 1,000 yd, below the 315 ft median of the 40 10x50 models in the chart. At 29.8 oz it is heavier than the 29.3 oz median for the size.
Oregon 4 PC Oasis 10x50 and its nearest rivals
Oregon 4 PC Oasis 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 |
|---|---|---|---|---|---|---|---|
| Opticron Oregon 4 PC Oasis 10x50 | 240 ft | 22 mm | 8.2 ft | 29.8 oz | 5 mm | $200 to $500 | |
| Hawke Vantage 10x50 | 294 ft | 18 mm | 8.2 ft | 25.5 oz | 5 mm | $200 to $500 | |
| Vortex Crossfire HD 10x50 | 320 ft | 17 mm | 6 ft | 30.4 oz | 5 mm | $200 to $500 | |
| Athlon Argos G2 HD 10x50 | 304 ft | 17 mm | 13 ft | 31.5 oz | 5 mm | $200 to $500 | Check price on Amazon |
Binocular Chart earns a commission from qualifying Amazon purchases made through these buttons.
Other sizes of the Oregon 4 PC Oasis
Opticron makes the Oregon 4 PC Oasis 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 | Amazon |
|---|---|---|---|---|---|---|---|
| Opticron Oregon 4 PC Oasis 10x50 | 10x50 | 240 ft | 22 mm | 8.2 ft | 29.8 oz | 5 mm | |
| Opticron Oregon 4 PC Oasis 8x32 | 8x32 | 423 ft | 15 mm | 5.9 ft | 17.5 oz | 4 mm | Check price on Amazon |
| Opticron Oregon 4 PC Oasis 8x42 | 8x42 | 366 ft | 22 mm | 7.5 ft | 24.2 oz | 5.3 mm | Check price on Amazon |
| Opticron Oregon 4 PC Oasis 10x42 | 10x42 | 315 ft | 18 mm | 7.5 ft | 23.9 oz | 4.2 mm | Check price on Amazon |
Opticron binoculars
Oregon 4 PC Oasis 10x50 questions
Oregon 4 PC Oasis 10x50: does it work with glasses?
Oregon 4 PC Oasis 10x50 has 22 mm of eye relief, which meets the 16 mm the RSPB advises for people who wear glasses.
Oregon 4 PC Oasis 10x50: what does 10x50 mean?
Oregon 4 PC Oasis 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.
Oregon 4 PC Oasis 10x50: how wide is the view?
Oregon 4 PC Oasis 10x50 shows a view 240 ft wide at 1,000 yd, below the 315 ft median of the 40 10x50 models in the chart.