Fujinon 10x50 FMTR-SX specs and field of view
Heavy glass defines the 10x50 FMTR-SX, which weighs 50.4 oz against a 29.3 oz median for its size. Its 342 ft field places 11th of 40 models.
- Field of view
- 342 ftat 1,000 yd
- Eye relief
- 19.8 mm
- Close focus
- 65.6 ft
- Weight
- 50.4 oz
- Exit pupil
- 5 mmcalculated
Why pick it
- 342 ft view, wider than the typical 315 ft
- 19.8 mm eye relief, enough for glasses
- Waterproof
Who the 10x50 FMTR-SX suits
A calculated exit pupil of 5 mm and 19.8 mm eye relief suit dusk watching and eyeglass wearers. Waterproofing reaches 2m-5min.
Close focus is 65.6 ft, far over the 9.8 ft median, and the weight calls for a tripod or a strap you trust.
10x50 FMTR-SX is one choice among many, and the top binoculars compared covers the most popular ones. 10x50 FMTR-SX is one of 40 models in the 10x50 binoculars comparison.
10x50 FMTR-SX specifications
10x50 FMTR-SX figures as Fujinon prints them; rows marked * are calculated from the 10x50 size.
| Magnification | 10x |
|---|---|
| Objective lens | 50 mm |
| Field of view | 342 ft at 1,000 yd (114 m at 1,000 m) |
| Angular field of view | 6.5° |
| Apparent field of view | 59.2° |
| Eye relief | 19.8 mm |
| Close focus | 65.6 ft (20 m) |
| Eye spacing range | 56 to 74 mm |
| Weight | 50.4 oz (1,430 g) |
| Width | 8.6 in (218 mm) |
| Waterproofing | 2m-5min |
| Focus system | Individual eyepiece focus |
| Exit pupil | 5 mm * |
| Twilight factor | 22.4 * |
| Relative brightness | 25 * |
* Calculated from the size, not printed by the maker.
10x50 FMTR-SX against other 10x50 binoculars
10x50 FMTR-SX shows 342 ft at 1,000 yd, at or above the 315 ft median of the 40 10x50 models in the chart. At 50.4 oz it is heavier than the 29.3 oz median for the size.
10x50 FMTR-SX and its nearest rivals
10x50 FMTR-SX 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 |
|---|---|---|---|---|---|---|---|
| Fujinon 10x50 FMTR-SX | 342 ft | 19.8 mm | 65.6 ft | 50.4 oz | 5 mm | ||
| Nikon Action EX 10x50 CF | 342 ft | 17.2 mm | 23 ft | 36 oz | 5 mm | ||
| Bushnell PowerView 2 10x50 | 344 ft | 16 mm | 25 ft | 27.8 oz | 5 mm | ||
| Bushnell Spectator Sport 10x50 | 298 ft | 17 mm | 31 oz | 5 mm | Check price on Amazon |
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Other sizes of the FMT (Polaris)
Fujinon makes the FMT (Polaris) 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 |
|---|---|---|---|---|---|---|
| Fujinon 10x50 FMTR-SX | 10x50 | 342 ft | 19.8 mm | 65.6 ft | 50.4 oz | 5 mm |
| Fujinon 7x50 FMTR-SX | 7x50 | 393 ft | 23 mm | 32.2 ft | 49.7 oz | 7.1 mm |
| Fujinon 10x70 FMTR-SX | 10x70 | 279 ft | 23 mm | 65.6 ft | 70.9 oz | 7 mm |
| Fujinon 16x70 FMTR-SX | 16x70 | 210 ft | 15.5 mm | 168 ft | 67.7 oz | 4.4 mm |
Fujinon binoculars
10x50 FMTR-SX questions
10x50 FMTR-SX: does it work with glasses?
10x50 FMTR-SX has 19.8 mm of eye relief, which meets the 16 mm the RSPB advises for people who wear glasses.
10x50 FMTR-SX: what does 10x50 mean?
10x50 FMTR-SX 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.
10x50 FMTR-SX: how wide is the view?
10x50 FMTR-SX shows a view 342 ft wide at 1,000 yd, at or above the 315 ft median of the 40 10x50 models in the chart.