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. | 61901 – UP 8×25 |
Model No. | 61902 – UP 10×25 |
Eye Relief | 15 mm |
Magnification | 8X |
Objective Lens Diameter | 25 mm |
Real Field of View | 6.2º |
Field of view at 1000m | 108 m |
Field of view at 1000 yards | 324 ft. |
Exit Pupil | 3.1 mm |
Relative Brightness | 9.6 |
Diopter Adjustment | Center Pop-up |
Diopter Adjustment Range | ±3m-1 |
Eye Width Adjustment Range | 56 to 72 mm / 2.2 to 2.8 inches |
Focusing Range | 1.9 m to infinity / 6.2 ft. to Infinity |
Eyepiece Ring | Slide Type (3 click stop) |
Height & Width | 115 x 110 mm / 4.5 inches x 4.3 inches |
Thickness | 56 mm / 2.2 inches |
Body Color | Black |
Apparent Field of View | 47º |
Weight | 300g / 10.6 oz |
Lens Construction (Objective lens / Eyepiece lens) | 2 elements – 1 group / 3 elements – 2 groups |