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 colors 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.

Extra-Low Dispersion Glass    Fully Multicoated Optics    Large Objective for Bright Image    Nitrogen-Filled, Fog & Waterproof    Large Knurled Center Focus Wheel    Tripod Mountable    Lightweight Thermoplastic Housing    Twist-Up Eyecups    Closed-Bridge Configuration

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 unfavorable lighting conditions such as twilight,  and a large 6mm exit pupil, so you can even use them for astronomical observation.

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.

• 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

Related Questions and Answers

Q: 1. Is the interpupillary distance adjustable to fit the varying distances of the eyes in wide and/or narrow faces?

A: The IPD range on these goes from a minimum distance of 5.6cm up to 7.4cm, which as you can see by comparing the IPD with others is a good range for a bin in this class and means they should accommodate most people.

Q: 2. Where is it made?

A: The Pentax 8x42 S-Series SD WP Binoculars are made in the Philippines.

Q: 3. Are these binoculars waterproof?

A: Unfortunately this model is not Waterproof. It's Slip Resistant, also could handle light right. They are not Waterproof though. If you wanted something Waterproof I would go with the Nikon 16x50 Action Extreme ATB Binoculars. Website link: http://bhpho.to/1BfHF7L

Q: 4. Where are the Celestron TrailSeeker ED 8X42 bins made ?

A: The country of origin for the Celestron 8x42 TrailSeeker ED Binoculars BH #CE8X42TSEDB • MFR #71405 is China

Q: 5. Does Pentax manufacture these in Japan?

A: Yes this series is made in Japan.

Q: 6. Does this come with straps? Does it come with eyepiece and objective covers?

A: Yes, the 8x42 TrailSeeker ED Binocular comes with a neck strap, eyepiece and objective lens covers.

Q: 7. Does this come with the caring case and a neck strap?

A: Yes, it does. I do not personally like or use any hard carrying case, but the neck strap is really good.

Q: 8. Is there a carrying case for this Pentax S-Series WP 10 x 42??

A: The Pentax 10x42 S-Series SD WP Binoculars BH #PE10X42SDWP • MFR #62762 comes with a carrying case. In the Box Pentax 10x42 S-Series SD WP Binoculars Neck Strap Carrying Case with Strap ********************** 2 x Objective Lens Caps 2 x Eyepiece Caps Limited 25-Year Warranty

Q: 9. Are the case coating and eye cups made of natural rubber? I am latex sensitive.

A: According to the manufacturer, the armor and eye cups on the Celestron 8x42 TrailSeeker ED Binoculars are covered with a synthetic rubber layer.

Q: 10. how do they compare optica llyto the SD version? I don't spot diopter correction in these

A: The right eyepiece has a diopter adjustment. If you are referring to the Pentax 8x42 S-Series SD WP Binoculars BH #PE8X42SDWP • MFR #62761. The Pentax 8x43 Z-Series ZD WP Binoculars BH #PE8X43ZDWP • MFR #62721 has a Magnesium Alloy Chassis and a narrower field of view