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Pentax 8.5x21 Papilio, Weather Resistant Porro Prism Butterfly Binocular with 6.0 Degree Angle of View, Close Focus Down to 1.6'., U.S.A.

SKU: PX8521P MFR: 62216
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About the Pentax 8.5x21 Papilio

• This Pentax binocular series is called Papilio, the Latin word for butterfly, because it was specifically developed for close-range observation of butterflies and other insects. The Pentax Binoculars Papilio 6.5 x 21 incorporates a special mechanism that automatically compensates for the misalignment of right and left image fields at close ranges (parallax), allowing easy observation of insects in the field and exhibits at galleries and museums. Thanks to its go-anywhere portability, the Pentax Binoculars Papilio series is also ideal for conventional binocular subjects, including spectator sports, travel and hiking. The Pentax Binoculars Papilio series features multi-coated optical elements to minimize unwanted light reflections for a well-defined subject image. The combination of aspherical optical elements and high-refraction BaK4 glass prisms assures a sharp, clear image with minimal distortion, even at the edges.

Pentax 8.5x21 Papilio Includes

  • Eyepiece Lens Cap, Storage / Carry Case, Strap.

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Pentax 8.5x21 Papilio Features

  • No other binoculars like them on the market!
  • Ideally suited for viewing insects, birds, artwork or any other object at close ranges
  • Tough rubber covered exterior provides a sure grip and protects the internal mechanisms
  • C.L.O.S.E. (Convergent Lens Optical System Engineering) allows them to focus down to 1.6 feet
  • Sleek, contemporary ultra-compact body with unibody construction
  • Revolutionary dual-axis, single body housing with synchronized eye-piece adjustment to assure correct optical alignment for comfortable viewing
  • Fast and easy center focusing for handling ease
  • Helicoid eyepiece rings for extra viewing comfort
  • Fully multi-coated optics to eliminate harmful ultraviolet rays while improving light transmission for high contrast images with no glare or flare
  • High quality BaK4 Porro prisms transmit more light at the edges to enhance illumination for easier viewing in dim light

Pentax 8.5x21 Papilio Specifications

Type of Prism Porro BaK4 prisms, Center Focusing
Magnification 8.5x
Objective Size 21mm
Field Of View at 1000 Yards 315 ft.
Field of View at 1000m: 105m
True Angular Field of View 6.0°
Apparent Angular Field of View 51°
Exit Pupil 2.5mm
Eye Relief 15mm
Relative Brightness 6.3
Diopter Adjustment -+4
Lens Coating Fully multi-coated
Rubber Coated Yes
Close Focus Distance (ft) About 1.6 ft. to infinity
About 0.5m to infinity
Eye Width Adjustment Range 2.2" to 2.9" / 56mm to 74mm
Special Feature(s) Revolutionary dual-axis, single body housing
C.L.O.S.E. (Convergent Lens Optical System Engineering)
Dimensions 4.6 x 4.3 in. /116 x 110mm
Thickness: 2.2 in. (55mm)
Weight 10.2 oz (290g)
Other Body Color: Black & Dark Gray
Other Eyepiece Ring: Helicoid type
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