Diamondback HD 10x28

Diamondback® HD 10x28

Diamondback HD 10x28 is rated 4.8 out of 5 by 25.
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MSRP $219.99


The Diamondback® HD smashes the scale of price vs performance, delivering a rock-solid optic that optically punches high above its class.

Patent Pending
Included in the Box
  • Soft side carry case
  • Soft side carry case strap
  • Comfort neck strap
  • Tethered objective lens covers
  • Rainguard Eyepiece Cover
  • Lens Cloth
Magnification 10x
Objective Lens Diameter 28 mm
Eye Relief 16 mm
Exit Pupil 2.8 mm
Linear Field of View 273 feet/1000 yards
Angular Field of View 5.1 degrees
Close Focus 6 feet
Interpupillary Distance 55-72 mm
Height 4.6 inches
Width 4.5 inches
Weight 13.3 oz
Parts Diagram (PDF) Download
Product Manual (PDF) Download
Patent Pending
Vortex Lifestyle Image




HD Optical System Optimized with select glass elements to deliver exceptional resolution, cut chromatic aberration and provide outstanding color fidelity, edge-to-edge sharpness and light transmission.
Fully Multi-Coated Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
Dielectric Coating Multi-layer prism coatings provide bright, clear, color-accurate images.
ArmorTek ® Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt.
Phase Correction Coating on roof prism models enhances resolution and contrast.


Rubber Armor Provides a secure, non-slip grip, and durable external protection.
Waterproof O-ring seals prevent moisture, dust and debris from penetrating the binocular for reliable performance in all environments.
Shockproof Rugged construction withstands recoil and impact.
Fogproof Argon gas purging prevents internal fogging over a wide range of temperatures.
Roof Prism Valued for greater durability and a more compact size.
Magnesium Chassis Decreases weight and increases strength.


Adjustable Eyecups Twist up and down for comfortable viewing with or without eyeglasses.
Center Focus Wheel Adjusts the focus of both binocular barrels at the same time.
Diopter Adjusts for differences in a user's eyes. Located on right eyepiece.
Tripod Adaptable Compatible with a tripod adapter, allowing use on a tripod or car window mount.



Rated 5 out of 5 by from Hands down the best... I purchased a Viper PST 4x16x50 a few years ago and was so impressed with the quality, I purchased a second product of theirs to add to my arsenal. The glass is crystal clear every time I put it in my line of sight. All features perform smooth and flawlessly down to each click. This is on my go to rifle for any season, especially predators. Anyone who picks up my rifle always asks where I bought the scope. Thanks guys for putting together great products to aid in our success day in and day out. My glass has a dozen or more harvests with my personal best of 275yds in Just 2 years!!! These binoculars have already spotted a few more prospects the for the up and coming seasons. Works and performs just as well as my scope. Nothing more to add. If you want something that won’t let you down, look no further. Vortex Optics is hands down the best...
Date published: 2020-01-14
Rated 5 out of 5 by from Love it Believe it or not, I have bought Diamondback 10x28 to use it as a theater binocular, but this little thing is so great that it got me into watching birds and other creatures which are abound in the Norwegian wilderness, and this gives me so much joy you couldn’t imagine. I have never owned a pair of decent binoculars before, and when I was shopping for this one, I tried similar models from Zeiss and Leica, but decided to go with Vortex because it was substantially cheaper and the image quality appeared superb. The only thing I regret about is that I chose the model with the smallest lens diameter, which naturally makes it not too good for low light conditions, but on the flip side, it is very compact and lightweight, so I can take it anywhere with me when I travel. The design and ergonomics are great. Cannot say it is 100 percent fog-proof, I had some issues with condensation on lenses, but it was only in rather extreme conditions of Brazilian rainforest. Overall, I think it packs a ton of value for the price you pay for it, and the quality is excellent.
Date published: 2020-01-11
Rated 2 out of 5 by from Poor Quality Control I keep these in my truck for surveillance in loss prevention. They have probably been used a dozen times or less. The last time I used them both of the twist out eye cups wouldn’t twist out. Instead they broke free of the threads and unscrewed. The only way to twist the eye cups out now is to over tighten the eye cups so they will lock to the mechanism that extends. After doing so the diopter adjustment ring is locked solid and useless. Should have paid $50 bucks more for the Nikons.
Date published: 2021-05-02
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