Opticron Explorer WA ED-R 10x42 specs and field of view
Weight of 23.3 oz on the Explorer WA ED-R 10x42 is below the 24.9 oz median for its size, while the 339 ft field edges above the 336 ft median.
- Field of view
- 339 ftat 1,000 yd
- Eye relief
- 15 mm
- Close focus
- 8.2 ft
- Weight
- 23.3 oz
- Exit pupil
- 4.2 mmcalculated
Why pick it
- 339 ft view, wider than the typical 336 ft
- 23.3 oz, lighter than the typical 24.9 oz
- Focuses as close as 8.2 ft
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Who the Explorer WA ED-R 10x42 suits
Long days on foot suit the lower weight and the ED glass. Calculated exit pupil is 4.2 mm.
A 15 mm eye relief is below the 16 mm median, and a close focus of 8.2 ft is longer than the 6.6 ft median.
Explorer WA ED-R 10x42 can be set against the most popular models of every size in the best binoculars list. Explorer WA ED-R 10x42 is one of 87 models in the 10x42 binoculars comparison. Opticron lists it in the $200 to $500 price band, alongside the models in best binoculars under $500.
Explorer WA ED-R 10x42 specifications
Explorer WA ED-R 10x42 figures as Opticron prints them; rows marked * are calculated from the 10x42 size.
| Magnification | 10x |
|---|---|
| Objective lens | 42 mm |
| Field of view | 339 ft at 1,000 yd (113 m at 1,000 m) |
| Angular field of view | 6.4° |
| Apparent field of view | 64° * |
| Eye relief | 15 mm |
| Close focus | 8.2 ft (2.5 m) |
| Eye spacing range | 55 to 73 mm |
| Weight | 23.3 oz (661 g) |
| Extra-low dispersion glass | Yes |
| Waterproofing | Waterproof |
| Maker list price | $200 to $500 |
| Exit pupil | 4.2 mm * |
| Twilight factor | 20.5 * |
| Relative brightness | 17.6 * |
* Calculated from the size, not printed by the maker.
Explorer WA ED-R 10x42 against other 10x42 binoculars
Explorer WA ED-R 10x42 shows 339 ft at 1,000 yd, at or above the 336 ft median of the 87 10x42 models in the chart. At 23.3 oz it is at or under the 24.9 oz median weight for the size.
Explorer WA ED-R 10x42 and its nearest rivals
Explorer WA ED-R 10x42 next to the 10x42 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 Explorer WA ED-R 10x42 | 339 ft | 15 mm | 8.2 ft | 23.3 oz | 4.2 mm | $200 to $500 | Check price on Amazon |
| Athlon Midas G2 UHD 10x42 | 341 ft | 15.2 mm | 8.2 ft | 23.3 oz | 4.2 mm | $200 to $500 | Check price on Amazon |
| Celestron Regal ED 10x42 | 340 ft | 20.2 mm | 4.9 ft | 27.1 oz | 4.2 mm | $200 to $500 | Check price on Amazon |
| Celestron TrailSeeker ED 10x42 | 340 ft | 15 mm | 8.2 ft | 23.5 oz | 4.2 mm | $200 to $500 | Check price on Amazon |
Other sizes of the Explorer WA ED-R
Opticron makes the Explorer WA ED-R 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 Explorer WA ED-R 10x42 | 10x42 | 339 ft | 15 mm | 8.2 ft | 23.3 oz | 4.2 mm | Check price on Amazon |
| Opticron Explorer WA ED-R 8x32 | 8x32 | 408 ft | 18 mm | 7.5 ft | 16.4 oz | 4 mm | Check price on Amazon |
| Opticron Explorer WA ED-R 10x32 | 10x32 | 315 ft | 16 mm | 7.5 ft | 16.3 oz | 3.2 mm | |
| Opticron Explorer WA ED-R 8x42 | 8x42 | 393 ft | 17 mm | 6.6 ft | 23.7 oz | 5.3 mm | Check price on Amazon |
Opticron binoculars
Explorer WA ED-R 10x42 questions
Explorer WA ED-R 10x42: does it work with glasses?
Explorer WA ED-R 10x42 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.
Explorer WA ED-R 10x42: what does 10x42 mean?
Explorer WA ED-R 10x42 magnifies 10 times through 42 mm front lenses, which works out to an exit pupil of 4.2 mm, the width of the beam of light that reaches each eye.
Explorer WA ED-R 10x42: how wide is the view?
Explorer WA ED-R 10x42 shows a view 339 ft wide at 1,000 yd, at or above the 336 ft median of the 87 10x42 models in the chart.