Pentax SD 7x42 ED S-series Roof Prism Compact Binoculars

  • $845.00
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Exceptional vision quality meets high-end expectations.

Large objective lenses incorporated in the design allow for contrast-rich, bright viewing under all light conditions.

First S-series models to feature ED (Extra-low Dispersion) glass elements, assuring a clear, high-contrast view of the image field and effective compensation of chromatic aberration

- 42-millimetre-diameter objective lenses to assure outstanding viewing performance, effortless observation of the subject and great operability

- Application of a full multi-coating process and a special coating process designed to optimise light transmittance, assuring a clear view of the subject with minimal glare and ghost images

- Waterproof construction equivalent to JIS Class 6 standards for dependable use in adverse weather conditions.


Premium optical features including extra-low dispersion glass make the Pentax SD 7x42 ED Binocular a great choice for all-around use. You'll see sharp details of distant objects with the 7x magnifying power, and the 42mm objective lenses gather plenty of light for a bright image even in low-light conditions including at dusk, dawn, or under deep cover. The ED glass corrects for chromatic aberration to ensure accurate colours and high contrast, and fully antireflective-coated optics maximize light transmission through the entire optical path to make views appear bright and crisp.

Complementing the optical performance is a housing that is built for a lifetime of rugged outdoor use. The chassis is made of grippy, comfortable-to-hold thermoplastic elastomer resin. The optical tubes are nitrogen filled to resist internal fogging from sudden temperature changes. With the optional TP-3 adapter, you can mount the binoculars on a tripod for hands-free, no-shake viewing. Whether birding, sightseeing, hunting, exploring the backcountry, or seeing the stage at a music festival, this optic will assure a great view.

Bright, Clear Viewing:

The SD ED provides a bright, clear view of the subject with minimal glare and ghost images, thanks to the application of a full multicoating process to all lens surfaces, and a special coating designed to optimize light transmittance. They also feature large, 42mm diameter objective lenses to deliver a bright, clear view even in unfavourable lighting conditions such as twilight,  and a large 6mm exit pupil, so you can even use them for astronomical observation.

ED Glass Optical Elements:

As the first models in the PENTAX S series to incorporate ED (extra-low dispersion) optical elements for effective compensation of chromatic aberration, these binoculars deliver a sharp, high-contrast, blur-free image.

Additional Features:

+Exterior housing made of thermoplastic elastomer resin to improve holding comfort and prevent accidental slippage

+Easy-to-operate diopter adjustment mechanism with a nonslip, ring-type adjuster

+Waterproof construction equivalent to JIS Class 6 standards for dependable use in adverse weather conditions

+Nitrogen-filled design to prevent interior lens surfaces from fogging due to sudden temperature changes

+Extendable eyepieces for effortless shift between in-use and storage positions

+Easy mounting on a tripod, in combination with the optional TP-3 Tripod Adapter


+Pentax SD 7x42 ED Binoculars

+2 x Objective Lens Cap

+Eyepiece Lens Cover

+Neck Strap

+Carry Case


+Prism Type - Roof

+Magnification - 7x

+Objective Lens Diameter - 42 mm

+Angle of View - 7.5° (Actual)

+Field of View - 394' @ 1000 yd / 130.8 m @ 1000 m

+Minimum Focus Distance - 9' / 2.7 m

+Exit Pupil Diameter - 6.1 mm

+Eye Relief - 18.2 mm

+Interpupillary Adjustment - 56 to 78 mm / 2.2 to 3.1"

+Focus Type - Centre

+Fog proof - Yes, Nitrogen Filled

+Environmental Protection - Advertised as Water Resistant (Test Methodology Not Supplied)

+Dimensions - 5.8 x 5.4 x 2.1" / 14.7 x 13.7 x 5.3 cm

+Weight - 25.3 oz / 717 g