PENTAX PCF WP II

Pentax PCF WP II 20x60 Zoom is made of durable aluminum body, which features a waterproof construction to one meter. In addition to water resists its rubberized design also scratches, dust, dirt and impact. It offers a 21 mm long eye relief makes it suitable for watching wearing glasses. The big advantage of this telescope are Bak4 prisms and multi-coated anti-reflective lenses, which guarantee perfect light transmittance while eliminating annoying reflections. Pentax PCF WP II 20x60 Zoom includes easy-to-handle diopter. Twenty times optical zoom and 60 mm lenses directly predispose him to observations near the water surface, as well as to watch in extreme climatic conditions or observations of distant objects.
Specifications:
Optical parameters.
Type: Porro
The construction of the lens/eyepiece: 2 members in the group 1/5 elements in 4 groups
Magnification: 20x
Lens diameter: 60 mm
Real field of view: 2.3 o
Apparent field of view: 44 o
Field of view at 1000 m: 38 m
Exit pupil: 3,0 mm
Eye relief: 21 mm
Relative brightness: 9
Diopter adjustment range: ± 4 m-1
Interpupillary distance: 57-72 mm
Closest focus: 8 m
Other:
Prisms: Bak4
Diopter
Antireflection coatings: multi-coated
Nitrogen filled body
Waterproof structure (1 m)
Design:
Color: Black
Dimensions: 224 x 195 x 80 mm
Weight: 1330 g