| 6.5X21 Papilio | |
| Type (Mechanism) | Centre-focusing porro prism |
| Lens construction (Objective Lens) (Eyepiece lens) |
2e - 1g 5e - 5g |
| Magnification | 6.5x |
| Objective lens diameter | 21mm |
| Real field of view | 7.5º |
| Apparent field of view | 49º |
| Field of view at 1000m | 131m |
| Field of view at 1000 yards | 393ft |
| Exit pupil | 3.2mm |
| Eye relief | 15mm |
| Relative brightness | 10.2 |
| Diopter adjuster | Click-stop adjuster built in right eyepiece |
| Diopter Adjustment range | ±4m-1 |
| Eye width adjustment range | 56 to 74mm 2.2 to 2.9 inch |
| Focusing range | Approximately 0.5m to infinity Approximately 1.6 ft to infinity |
| Vergence Correction | Focus-coupled correction mechanism |
| Eyepiece ring | Helicoid type |
| Body colour | Black & Dark grey |
| Height & Width (mm) (inch) |
114 x 110mm 4.5 x 4.3 inches |
| Thickness | 55mm (2.2 inch) |
| Weight | 290 g (10.2 oz) |
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Effortless Close-Range Observation
The 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.
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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.
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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.
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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.
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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.
PENTAX-original dual-axis eye-distance adjustment mechanism for quick, effortless eye-distance control
Extendable 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
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