Outfitted with a powerful magnification and large objectives that enable detailed observations of distant objects even in challenging lighting conditions, GPO USA's black 10x50 Passion HD Binocular uses individual extra low-dispersion (ED) glass lenses that are laminated together into a single unit to minimize internal light reflection and chromatic aberration — which enhances resolution, contrast, and color rendition beyond what ED glass does in a traditional lens design.

Added to this Double HD lens configuration, the Passion HD combines large objectives, phase-corrected BAK4 Schmidt-Pechan prisms, and anti-reflective fully multi-coated optics that work together to further enhance the optical performance and produce clear and bright images with accurate color representation across a field of view that approaches wide-angle, without distortion, or spherical or chromatic aberrations. When combined with its ultra-long eye relief and comfortable exit pupil, users will be presented with an immersive observational experience in the field, at the range, or in the blind regardless of the light conditions.

Exterior lens surfaces are treated with GPO's proprietary PASSIONdrop hydrophobic coatings, which repel water, dust, oil, and dirt to make them smudge repellent, help them stay cleaner longer, and easier to clean. Its sturdy magnesium alloy chassis helps to keep the weight down without sacrificing strength, while its micro-bridge design frees up more space on the optical tubes for the user's hands to improve grip strength and stability. The binocular is wrapped in a protective rubber armor that provides a non-slip grip even in cold and wet weather. Each optical tube is nitrogen-filled and O-ring sealed to be waterproof, and resistant to internal fogging when moving through extreme temperature changes or environmental conditions.

From the pre-dawn hours past dusk and in all weather conditions, the Passion HD binocular will become an invaluable addition to your kit for all types of outdoor activities.

Extra-Low Dispersion (ED) Glass    Phase-Corrected Schmidt-Pechan Prisms    Double HD Laminated Lens Construction    GPObright Fully Multi-Coated Optics    Hydrophobic PASSIONdrop Lens Coatings    Nitrogen-Filled, Water and Fogproof    Magnesium Micro-Bridge Design    Durable Magnesium-Alloy Chassis    Tripod Mountable with Optional Adapter    Twist-Up Click-Stop Eyecups

• High 10x magnification for making detailed observations of distant objects
• Large 50mm objective lenses boost light-gathering ability for greatly improved low-light performance
• Compact BAK4 Schmidt-Pechan prisms allow for thinner optical tubes versus the more common Abbe-Koenig prism
• Phase-correcting prism coatings reduce internal light interference to help improve contrast and overall image sharpness
• Extra low-dispersion (ED) glass corrects for spherical and chromatic aberrations, astigmatism, and off-axis comas to produce crisp and sharp images with accurate colors especially at the edges
• Double HD lens configuration: Multiple lenses are chemically laminated to make a single, multilayer high-performance optical lens that minimizes light reflection, creates enhanced resolution and color contrast images, and minimizes chromatic aberrations
• Proprietary GPObright fully multi-coated optics limit light loss while further improving image brightness, color rendition, and contrast
• 59° apparent angle of view approaches wide-angle to help minimize the appearance of distracting visible hand-shake common with high-power optics
• 309-foot field of view at 1000 yards

• Compact yet strong magnesium micro-bridge exposes more surface area on the optical tube to improve hold and comfort without sacrificing strength
• Large textured slip-resistant center focus wheel is easy to manipulate even while wearing gloves
• Sturdy machined aluminum right-eye diopter ring, broad ±4 dioptric correction range for precise focus adjustment to most user's individual eye prescription
• Twist-up click-stop eyecups for comfortable use with or without eyewear
• 58-76mm interpupillary adjustment range
• Tripod mountable with optional adapter for hands-free use, and reduced arm fatigue and vibrations
• Extra-long 19.5mm eye relief makes long-duration glassing sessions more comfortable without eye strain
• Comfortable 5mm exit pupil will cover most pupils when they open and dilate in low-light conditions for clearer views

• Lightweight and durable magnesium alloy chassis reduces weight without sacrificing strength
• Nitrogen-filled and O-ring sealed to be waterproof to 200Mbars of pressure, and resistant to internal fogging when moving through extreme temperature changes
• PASSIONdrop hydrophobic coatings are applied to the exterior lens surfaces to repel water, dust, oil, and dirt to make them smudge repellent, stay cleaner longer, and easier to clean
• Protective rubber armor provides a slip-resistant grip
• Textured palm pads improve grip security and stability — especially in wet weather
• Comfortable neoprene neck strap, custom molded hard carrying case with strap
• Weight: 34 ounces

Related Questions and Answers

Q: 1. How do you focus these bad boys? The way I understand it is you focus each ocular at a fixed target. once the left and right ocular are adjusted perfectly to your eyes..thats it..(?). what happens if you want to zero in on a subject 80 yards closer (or further) from your zero'ed in subject.. do you have to recalibrate each ocular again?

A: We can see the Nikon 10x50 WX IF Binocular (Black) does have an individual focusing system for each Ocular, described in the Overview of those binoculars: "To ensure the sharpest views possible, the WX is built with a helical focusing mechanism on each individually focusing eyepiece. Eschewing the conventional center focusing system not only allows precise focusing for any user, but it also ensures the integrity and longevity of its waterproofing. The helical mechanism moves the eyepieces forward and back without rotating the eyepiece lenses, maintaining a centered optical axis that enables even more clarity and sharpness.

Q: 2. Is exit pupils truncated in this binocular as was reported in a couple of reviews?

A: The Vortex 10x50 Razor UHD Binoculars, have been improved, and the Reviews are very positive now.

Q: 3. What color are these binoculars?

A: They are a dark green color.

Q: 4. Is this compatible with the Nikon 10x42 Prostaff 7S Binocular?

A: Yes. The adapter tends to loosen easily and the binoculars will not fit in the case with the adapter attached. It does work as advertised.

Q: 5. Does this work with the Nikon Laserforce Rangefinding Binoculars?

A: Yes it is compatible with the Laserforce binoculars.

Q: 6. 8x42, 10x42 or 10x50 Which is best for low light or night view of owls etc?

A: Between the 10X42 and the 10X50 the 10X50 will be the brightest because of the larger objective lens. It will also be the largest and heaviest. The 8X42 has less magnification than the 10X42 so it will be brighter.

Q: 7. Which Arca fitting do I need to attach the Leica Binocular Adapter to the tripod?

A: The Leica Binocular Tripod Adapter has a standard 1/4-20 female so it can be used with any QR plate that has a standard 1/4-20 stud. Most Arca compatible plates use a 1/4-20 stud.

Q: 8. What's the difference between the TRA-3 adapter and the less expensive #8177 adapter? I.e. why buy this one and not the other?

A: No difference in functionality. Just a different design.

Q: 9. Can Bushnell 8 x 42 be held be held by this adapter , or anyone knows one that fits better ?

A: If the Bushnell has a female threaded hole on the front of the pivot it should work. Check for a cover over that hole before you give up.

Q: 10. Is this compatible with Nikon 8x42 Monarch 5 (roof) binocular?

A: Yes, I bought it for my Monarch 8 x 42s. Works fine.