| Item | Binoculars | |
|---|---|---|
| 18x50 IS ALL WEATHER |
15x50 IS ALL WEATHER |
|
| Type | Prism Binoculars | |
| Magnification | 18x | 15x |
| Objective lens effective diameter |
50mm | |
| Filter size | 58mm | |
| Real field of view | 3.7° | 4.5° |
| Apparent field of view | 66.6° | 67.5° |
| Objective lens construction | 4 elements in 3 groups (including protective glass) |
|
| Eyepiece lens construction | 7 elements in 5 groups | |
| Exit pupil diameter | 2.8mm | 3.3mm |
| Eye relief | 15mm | |
| Prism type | Porro II | |
| Eye width adjustment | 58mm ~ 76mm | |
| Focusing method | Manual focusing by turning the focusing knob |
|
| Dioptric correction | ±3.0 diopters | |
| Closest focusing distance | 6 meters/19.7 ft. | |
| Image Stabilizer | Vari-Angle Prism | |
| Correction angle | ±0.7° | |
| Tripod socket | Provided | |
| Power source | 2 x AA | |
| Dimensions | 152 x 193 x 1180mm/6.0 x 7.6 x 3.2 in. | |
| Weight | 1180g/41.6 oz. (excluding batteries) | |