Pentax introduce Papilio Series of Compact Porro-Prism Binoculars

Pentax's new Papilio series of porro-prism binoculars includes the Pentax Papilio 6.5x21 and Pentax Papilio 8.5x21. They incorporate a new mechanism that automatically compensates for the misalignment of right and left image fields at close ranges, facilitating the observation of insects in the field and exhibits at galleries and museums. The new series is called Papilio, the Latin word for butterfly, because it was specifically developed to satisfy user demands for close-range observation of butterflies and other insects.

Major Features
1. Effortless Close-Range Observation
The new Papilio series features the Pentax-developed Convergent Lens Optical System Engineering mechanism, which automatically slides the left and right objective lenses toward the center when the focus is fixed at a short distance. As a result, the right and left image fields are correctly aligned to facilitate close-range viewing. Thanks to its go-anywhere portability, this new series is also ideal for conventional binocular subjects, including spectator sports, travel and hiking.

2. Extra-Short Minimum Focusing Distance
The Papilio series offers a minimum focusing distance of just 50 centimeters (approx. 1.6 feet), considerably shorter than the two-meter distance (approx. 6.5 feet) offered by similar Pentax models currently on the market.

3. Outstanding Optical Performance
The 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.

4. Long Eye Relief
The Papilio series offers a long 15-millimeter eye relief to assure effortless viewing of the entire image field, even for eyeglass wearers.

5. Protective Rubber Housing
The protective rubber housing not only protects inner mechanism from external shock, but also assures a firm, comfortable grip of the binocular body even in the field.

Other Features

• Pentax-original dual-axis eye-distance adjustment mechanism for quick, effortless eye-distance control
• Extendible helicoid-type eyepiece rings with a single-action pop-up/storage mechanism
• Diopter adjuster with a click-stop lock mechanism to avoid accidental diopter shift
• Neck strap with a quick installation/removal mechanism
• Tripod receptacle for stable observation

Specifications

Model	Papilio 6.5x21	Papilio 8.5x21
Type	Center-focusing porro-prism binoculars	Center-focusing porro-prism binoculars
Lens Construction Objective Lens Eyepiece Lens	2 elements/1 group 5 elements/5 groups	2 elements/1 group 5 elements/5 groups
Magnification	6.5X	8.5X
Effective Aperture of Objective Lens	21mm	21mm
Angle of View	7.5°	6.0°
Apparent Angle of View	49°	51°
Field of View at 1,000m (1,000 yds.)	131m (393 ft.)	105m (315 ft.)
Exit Pupil	3.2mm	2.5mm
Eye Relief	15mm	15mm
Relative Brightness	10.2	6.3
Diopter Adjuster	Click-stop adjuster built in right eyepiece	Click-stop adjuster built in right eyepiece
Diopter Adjustment Range	±4m －１	±4m －１
Eye-Distance Adjustment Range	56mm - 74mm (2.2 in. - 2.9 in.)	56mm - 74mm (2.2 in. - 2.9 in.)
Focus Range	Approx. 0.5m (1.6 ft.) to infinity	Approx. 0.5m (1.6 ft.) to infinity
Vergence Correction	Focus-coupled correction mechanism	Focus-coupled correction mechanism
Eyepiece Rings	Helicoid type	Helicoid type
Body Color	Black & dark gray	Black & dark gray
Height x Width	114mm x 110mm (4.5 in. x 4.3 in.)	116mm x 110mm (4.6 in. x 4.3 in.)
Thickness	55mm (2.2 in.)	55mm (2.2 in.)
Weight	290g (10.2 oz.)	290g (10.2 oz.)
Accessories	Eyepiece lens cap, case, neck strap	Eyepiece lens cap, case, neck strap