Pentax introduces compact, waterproof roof-prism binoculars

Pentax have announced the addition of two binoculars to the popular Pentax DCF series: the 8x28 DCF MP and the 10x28 DCF MP. Despite their compact, lightweight design, these new models feature a fully water-shielded, nitrogen-filled body and high-performance roof-prism optics incorporating multi-coated optical elements and phase-coated prisms. Their waterproof design makes them ideal for use on or around the water, as well as for observations in harsh weather and extreme climates.

The waterproof body of these DCF MP models is rated JIS Class 6, allowing the user to wash them clean when they get dirty or are accidentally soaked in salt water. The body is filled with nitrogen to prevent fogging caused by sudden temperature changes.* Pentax's original inner-focus optics not only makes them smaller and lighter, but also assures a sharp, bright image without distortion. In addition, these models incorporate a host of user-friendly features to make viewing pleasant and fatigue-free.

Major Features of Pentax DCF MP Series
1. High-resolution phase-coated roof prisms
Normally available only in the most expensive models, phase-coated prisms effectively cancel the phase difference created on the wave front of light passing through the prisms, thus producing sharp, high-contrast images with much improved resolution.

2. Multi-coated optical elements
All optical elements are treated with a special multi-layer coating to produce clear, bright images without flare. As a result, these new models are excellent choices for bird watching and hunting in the woods.

3. Waterproof body
In addition to the JIS Class 6-rated waterproof construction, these models are filled with nitrogen to eliminate fogging due to sudden temperature changes. As a result, they can be used safely under extreme weather conditions such as rain or snow.

DCF MP Binoculars Specifications
Model 8x28 DCF MP 10x28 DCF MP
Type Roof-prism center focusing
Lens construction
(Objective lens)
(Eyepiece lens) 3 elements in 2 groups
4 elements in 3 groups 3 elements in 2 groups
5 elements in 4 groups

Coating (Lens)
(Roof-prism) Multi Coating
Phase Coating

Magnification 8 x 10 x
Objective lens
Diameter 28 mm 28 mm
Real field of view 6 5
Apparent field of view 48 50

Field of view at 1000 m 105 m 87 m
Field of view at 1000 yard 315 ft 261 ft
Exit pupil 3.5 mm 2.8 mm
Eye Relief 20 mm 19 mm
Relative Brightness 12.3 7.8
Diopter adjustment range 3 D 4 D
Diopter adjustment Diopter ring with click stop
Eye Width adjustment range 58 to 74 mm 2.3 to 2.9 inch

Focusing range 3 m to infinity, 9.9 ft to infinity
Eyepiece ring Helicoid eyepiece ring
Body color Black
Height & Width 118 x 119 mm 4.6 x 4.7 inch
Thickness 45 mm 1.8 inch
Weight 460 g 16.2 oz
Waterproof 1 m depth of water, Nitrogen filled

Accessories Objective Lens Cap, Eyepiece lens cap (Rain gurd type) Case, Neck strap