Ultra-Compact Binoculars: FB Lite
 |
| Model: | FB-7 Lite | FB-9 Lite |
|---|---|---|
| Type: | Roof-prism binoculars with center-focusing system | |
Lens Construction: Objective lens:Eyepiece lens: |
2 elements in 1 group 3 elements in 2 groups |
|
| Magnification: | 7X | 9X |
| Effective Aperture of Objective Lens: | 17mm x 11mm | |
| Angle of View: | 7.1° | 5.6° |
| Apparent Angle of View: | 50° | |
| Field of View (at 1,000m): | 124m | 98m |
| Exit Pupil: | 2.4mm x 1.6mm | 1.9mm x 1.2mm |
| Eye Relief: | 11mm | 8.5mm |
| Relative Brightness: | 4.5 | 2.7 |
| Diopter Adjustment Range: | ±4m-1 | |
| Eye-Distance Adjustment Range: | 57mm ~ 70mm | |
| Focus Range: | 1.8m ~ ∞ | |
| Eyepiece Ring: | Fixed type | |
| Dimensions: | 64mm (W) x
95mm (H) x 26.5mm (D) excluding control devices and protrusions |
|
| Weight: | 148g | |
| Accessories: | Soft case, Strap | |
