DescriptionDescriptionDesigned for both astronomical and terrestrial use, Pentax‘s 10×50 S-Series SP Binocular features large oversized fully multicoated 50mm objectives to reduce reflection and maximize light transmission through the entire optical path. Utilizing the traditional porro prism configuration gives scenes a rich depth of view for an immersive observation experience and provides a comfortable feel in the hand with a lot of surface area to maintain a sure grip. The large objectives and coatings maximize the amount of light getting to the user’s eyes for exceptional low-light capabilities, and its high 10x magnification provides an immersive observation experience whether users are bird watching or comet hunting.The binocular sports a generous 13mm eye relief and the fold-down eyecups seal against the ocular cavity to block stray peripheral light which can dim images. Its over-sized objectives add weight and bias the center of gravity forward making user fatigue a concern and hand-shake a possibility, so to aid long observation sessions the binocular can be mounted on a tripod using an optional adapter.Optical Performance10x magnification50mm objective lensesBAK4 porro prism optical pathAnti-reflection fully multicoated optics341.3” field of view at 1000 yards64° wide angle of viewOptical Performance– 8× 10× 12× 16x magnification– 50mm objective lenses– BAK4 porro prism optical path– Anti-reflection fully multi coated opticsUse and Handling– Closed bridge configuration– Large knurled centre focus wheel– Right-eye diopter adjustment– Fold-down rubber eyecups seal against ocular cavity and block stray peripheral lightConstruction Details– Internal focusing system (8×40)– Rubberized armoring protects against impacts and provides slip-resistant grip– Tripod mountable with optional adapterSpecifications:– Prism Type: Porro– Magnification: 8× 12× 16x– Objective Lens Diameter: 40 mm (8x) 50mm (12x, 16x)– Angle of View:8.2o (8x)5.6o (12x)3.5o (16x)– Field of View:430.4’ 1000 yd / 143.5 m 1000 m (8x)294.0’ 1000 yd / 98.0 m 1000 m (12x)183.7’ 1000 yd / 61.2 m 1000 m (16x)– Minimum Focus Distance:127.8’ / 39 m (8x)191.5’ / 58.4 m (12x)219.5’ / 66.9 m (16x)– Exit Pupil Diameter:5.0 mm (8x)4.2 mm (12x)3.1 mm (16x)– Eye Relief: 13 mm– Interpupillary Adjustment: Not Specified by Manufacturer– Dioptric Correction: Not Specified by Manufacturer– Focus Type: Center– Tripod Mount: Yes (Adapter Optional)– Dimensions:7.4 × 5.2 × 2.2 Inches / 18.8 × 13.2 × 5.6 cm (8x)7.8 × 6.3 × 2.3 Inches / 19.8 × 16.0 × 5.8 cm (12x)7.8 × 6.5 × 2.3 Inches / 19.8 × 16.5 × 5.8 cm (16x)– Weight:27.2 oz / 771.1 g (8x)31.00 oz / 878.85 g (12x)32.00 oz / 907.20 g (16x)In the Box:– Pentax 8×40/12×50/16×50 S-Series SP Binocular– Neck Strap– Carrying Case (8×40)– Carrying Case with Strap (12×50, 16×50)– 2 x Objective Lens Caps– 2 x Eyepiece Caps
