Description
Named for the Latin word for butterfly, PENTAX Papilio 8.5×21 binoculars are the perfect choice for insect observation in the field and in museums and galleries. The enhanced observation capability of the Papilio binoculars is made possible by a PENTAX Convergent Lens Optical System Engineering (CLOSE) mechanism. The CLOSE mechanism automatically slides the left and right objective lenses toward the center when the focus is fixed at a short distance.
Specifications
- Binocular Type: Center focusing, porro-prism
- Lens Construction: Objective Lens: 2 elements in 1 group Eyepiece Lens: 5 elements in 5 groups
- Magnification: 8.5x
- Objective Lens Diameter: 21mm
- Real Field of View: 6.0 degrees
- Apparent Field of View: 50 degrees
- Field Of View At 1000 Meters: 105m
- Field of View at 1000 yards: 315 ft.
- Exit Pupil: 2.5mm
- Eye Relief: 15mm
- Prism: Porro
- Minimum Focusing Distance: 1.6 ft.
- Relative Brightness: 6.3
- Diopter Adjustment Range: +/- 4 m -1
- Diopter Adjustment: Right diopter ring (click diopter adjustment)
- Eye Width Adjustment Range: 2.2 – 2.9″
- Focusing Range: 1.6 ft. – infinity
- Eyepiece Ring: Helicoid Type
- Body Color: Black & dark gray
- Dimensions: 4.5 x 4.3 x 2.2″
- Weight: 10.2 oz.
- Accessories: Eyepiece lens caps, Case, Neck strap
- Vergence Correction: Focus-coupled correction mechanism
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