PENTAX Papilio 8.5x21 Binoculars (62216)

Vendor: Pentax



The PENTAX Papilio 8.5x21 Binoculars (62216) are a part of an optics series called Papilio, the Latin word for butterfly, because they were specifically developed to satisfy the need for close-range observation of butterflies and other insects.

The close focusing capacity of the binocular is in some measure quite limited by the position of the objective lenses themselves, but this particular Pentax has a unique Convergent Lens Optical System Engineering (CLOSE) mechanism which brings the objective lenses closer as the focusing dial is adjusted to shorter distances. The CLOSE mechanism automatically slides the left and right objective lenses toward the center when the focus is fixed at a short distance.

The optics are fully multi-coated to eliminate harmful ultraviolet rays while improving light transmission. This gives you high contrast images with no glare or flare. The Papilio uses high quality BaK-4 prisms to transmit more light at the edges of the field. This enhances the illumination for easier viewing in dim light.

The body is a reverse porro prism design, in which the objective lenses are closer together than the eyepieces. This allows for nearly full-size binocular performance from a very compact body. A soft touch dark grey rubber armor with molded-in thumb grooves covers the durable and lightweight molded polycarbonate body to protect the internal mechanisms and provide a sure grip.

Aside from its manifest virtues as a butterfly binocular, the Papilio is a handy bino for nature walks, hiking, traveling, spectator sports, the theatre, etc. - anywhere compact size, good optics, and light weight are important.

  • Ideally suited for viewing insects, birds, artwork or any other object at close ranges
  • C.L.O.S.E. (Convergent Lens Optical System Engineering) allows to focus down to 1.6 feet
  • Tough rubber covered exterior provides a sure grip and protects the internal mechanisms
  • 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 for high contrast images with no glare or flare
  • High quality BaK-4 prisms transmit more light at the edges to enhance illumination for easier viewing in dim light
  • Black / Dark Grey Finish
  • Pentax "Worry Free" Lifetime Warranty
  Magnification     8.5x  
  Objective Lens Diameter, mm     21  
  Field of View (FOV) @ 1000yds, ft     315  
  Angle of view, degree     6°  
  Exit Pupil, mm     2.5  
  Eye Relief, mm     15  
  Relative Brightness     6.3  
  Focusing Range, ft     1.6 to infinity  
  Eye Width Adjustment, mm     56–74  
  Dioptre Correction, dpt     ±4  
  Type of Prism     Porro  
  Focus     Center  
  Construction Objective Lens  
  Ocular Lens  
  2 elements in 1 group;  
  5 elements in 5 groups  
  Dimensions (H x W), in     4.6" x 4.3"  
  Weight, oz     10.2  
  • PENTAX Papilio 8.5x21 Binoculars (62216)
  • Eye Lens Caps
  • Case
  • Strap
  • Pentax "Worry Free" Lifetime Warranty