Pentax 10x50 S-Series SP Binoculars

Designed for both astronomical and terrestrial use - Pentax's 10x50 S-Series SP Binoculars feature 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 their high 10x magnification provides an immersive observation experience whether users are bird watching or comet huntingThe binoculars sport a generous 13mm eye relief and the fold-down eyecups seal against the ocular cavity to block stray peripheral light which can dim images Their 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 binoculars can be mounted on a tripod using an optional adapter

Features: BAK4 Porro Prisms, Center Focusing, Slip-Resistant Rubberized Armoring, Fully Multicoated Optics, Wide Angle of View: 64°, Closed Bridge Configuration, Fold Down Eyecups, Tripod Mountable

Prism Type: Porro

Magnification: 10x

Objective Lens Diameter: 50 mm

Angle of View: 6.4 degrees (Actual)

Field of View: 336' @ 1000 yd / 112 m @ 1000 m

Minimum Focus Distance: 18.2' / 5.55 m

Exit Pupil Diameter: 5 mm

Eye Relief: 13 mm

Diopter Adjustment: Yes

Focus Type: Center

Dimensions: 7.8 x 6.5 x 2.3-inch / 19.8 x 16.5 x 5.8 cm

Weight: 32 oz / 907.2 g