PENTAX quality and clarity are within reach, at a price that’s within reach, too. These compact porro-prism models feature a dual-axis, single body design with synchronized eyepiece adjustment. Aspherical lens elements give you edge-to-edge sharpness. Clear images and clearly affordable.
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| Type | Porro-prism centre focusing (Linked-dual-axis) |
| Model No. | 61961 – UP 8-16×21 – Black |
| Model No. | 61962 – UP 8-16×21 – Brown |
| Model No. | 61963 – UP 8-16×21 – Green |
| Eye Relief | 14 mm (8X) to 11 mm (16X) |
| Magnification | 8 – 16X |
| Objective Lens Diameter | 21 mm |
| Real Field of View | 5º (8x) to 3º (16x) |
| Field of view at 1000m | 87 m (8x) to 52 m (16x) |
| Field of view at 1000 yards | 261 ft. (8x) to 156 ft. (16x) |
| Exit Pupil | 2.6 mm (8X) to 1.3 mm (16X) |
| Relative Brightness | 6.7 (8X) to 1.7 (16X) |
| Diopter Adjustment | Center Pop-up |
| Diopter Adjustment Range | ±4m-1 (8x) |
| Eye Width Adjustment Range | 57 to 72 mm / 2.2 to 2.8 inches |
| Focusing Range | 3 m to infinity / 9.8 ft. to Infinity |
| Eyepiece Ring | Helicoid eyepiece ring (3 click stop) |
| Height & Width | 111 x 111 mm / 4.4 inches x 4.4 inches |
| Thickness | 55 mm / 2.72 inches |
| Body Color | Black, Brown and Green |
| Apparent Field of View | 38.5º (8x) to 45.5º (16x) |
| Weight | 310g / 10.9 oz. |
| Lens Construction (Objective lens / Eyepiece lens) | 2 elements – 1 group / 4 elements – 3 groups |
