

| Model | BT5563B | |
| Specification | 8x22mm | |
| Magnification | 8x | |
| Obj.lens (mm) | 22 | |
| Angle | 7.0° | |
| Field of View at 1000m | 122 | |
| Apparent Field of View | 56° | |
| Exit pupil (mm) | 2.7 | |
| Eye relief (mm) | 10 | |
| Dusk Index | 13.2 | |
| Relative Brightness | 7.3 | |
| Type of Prism | Porro | |
| Focus System | Central | |
| Lens Coating | Fully Multi | |
| Eyecups | Fold-Down | |
| Size (mm) | 113(L)x52(W)x83(H) | |
| Weight (g) | 220 g | |