PENTAX Papilio III WR 8.5×21
Model 62016
The PENTAX Papilio III WR 8.5×21 is a compact binocular designed for observing both nearby details and distant subjects. Its 50 cm minimum focusing distance makes it useful for examining flowers, insects, museum displays, and other small objects without switching to a separate close-up optic. The 8.5× magnification, 21 mm objectives, BaK-4 Porro prisms, fully multi-coated optics, and HD coating support detailed viewing in a portable 295 g design. Weather-resistant construction adds versatility for everyday outdoor use.
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Key Features
The PENTAX Papilio III WR 8.5×21 combines close-range viewing, compact portability, and weather-resistant construction for detailed observation indoors and outdoors.
8.5x
Magnification
21 mm
Objective Lens
50 cm
Close Focus
WR
Weather Resistance
BaK-4
Porro Prisms
295 g
Compact Design
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Quick Specifications
| Specification | Details |
|---|---|
| Magnification | 8.5× |
| Objective Lens Diameter | 21 mm |
| Minimum Focus Distance | 0.5 m (1.6 ft) |
| Field of View | 6.0° |
| Prism Type | Porro, BaK-4 glass |
| Weather Resistance | Water-resistant construction |
| Weight | Approx. 295 g (10.4 oz) |
About This Model
The PENTAX Papilio III WR 8.5×21 is a compact binocular designed for people who want to examine nearby details as well as observe subjects at greater distances. Its distinctive close-focusing system allows focusing from approximately 50 cm, making it particularly useful for viewing flowers, butterflies, insects, museum exhibits, and other small subjects. The 8.5× magnification provides detailed views while maintaining a portable form factor.
The binocular uses 21 mm objective lenses and BaK-4 Porro prisms, combining a compact body with an optical layout suited to close-range observation. Fully multi-coated optics help improve light transmission, while the model’s HD coating is designed to support image quality. Its 6.0° angular field of view provides a useful viewing area for locating and observing subjects without excessive magnification.
The Papilio III WR is designed for outdoor use with a water-resistant construction that adds protection in changeable conditions. Weighing approximately 295 g, it is easy to carry on nature walks, sightseeing trips, and other outings where compact equipment is preferred. Its main distinguishing feature remains the ability to focus at very short distances, making it a specialized option for close-up observation rather than simply a conventional compact binocular.
Full Specifications
The PENTAX Papilio III WR 8.5×21 combines close-focus capability with a compact optical design for observing nearby details and distant subjects. The specifications below cover its magnification, optical system, focusing performance, field of view, physical dimensions, and weather-resistant construction to help you assess its suitability for nature observation, travel, and everyday use.
| Specification | Details |
|---|---|
| Brand | PENTAX |
| Model | Papilio III WR 8.5×21 |
| Manufacturer | RICOH IMAGING |
| Binocular Type | Compact Close-Focus Binoculars |
| Magnification | 8.5× |
| Objective Lens Diameter | 21 mm |
| Prism System | Porro Prism |
| Prism Glass | BaK-4 |
| Lens Construction | Aspherical Optical Elements |
| Lens Coating | Fully Multi-Coated |
| Additional Optical Coating | HD Coating |
| Real Field of View | 6.0° |
| Field of View at 1,000 m | 105 m |
| Field of View at 1,000 yd | 315 ft |
| Exit Pupil Diameter | 2.5 mm |
| Eye Relief | 15 mm |
| Relative Brightness | 6.3 |
| Minimum Focusing Distance | Approx. 0.5 m (1.6 ft) |
| Focusing System | Center Focus |
| Close-Range Viewing Mechanism | Convergence Correction Mechanism |
| Diopter Adjustment | Click-Stop Adjustment |
| Eyecups | Pull-Up Eyecups |
| Weather Resistance | Water-Resistant Construction |
| Waterproof Rating | No Immersion Rating Specified |
| Body Construction | Rubber-Armored Body |
| Tripod Compatibility | Compatible with Optional Tripod Adapter U |
| Height | 116 mm (4.6 in) |
| Width | 110 mm (4.3 in) |
| Thickness | 55 mm (2.2 in) |
| Weight | Approx. 295 g (10.4 oz) |
| Included Accessories | Case, Neck Strap, Eyepiece Lens Cap |
| Intended Uses | Close-Up Nature Observation, Insects, Flowers, Museums, Sightseeing, and General Outdoor Viewing |
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Where to Buy
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