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Vortex 10x28 Diamondback Roof Prism Binoculars with Smartphone Adapter Bundle

  • mfr: DB-201_K2
  • SKU: DB201SPA
In Stock

Available options:

  • Free standard shipping

    *Orders placed before 3 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

  • Free Local Pickup

    Please call for store stock availability.

    Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

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Product highlights

  • 10x Magnification in 28mm objective lens
  • 273' Field of view at 1,000 yards
  • Multiple anti-reflective coatings on lenses
  • Finely adjustable eyecups
  • 16mm Eye relief
  • Locking diopter
  • Center focus wheel
  • Tripod adaptable
  • Rubber armored exterior for non-slip grip
  • Waterproof and fogproof

Vortex 10x28 Diamondback Roof Prism Binoculars with Smartphone Adapter Bundle

Celestron Basic Smartphone Adapter (1.25-Inch)

The smartphone adapter connects your smartphone to your telescope, so you can capture images and video through the eyepiece. With its light rigid frame, this accessory allows you to connect any smartphone to any telescope eyepiece with an outside diameter of 45mm or smaller. The additional magnification provided by the eyepiece allows your phone to capture great images of the moon and planets.

Durable Construction

This smartphone adapter installs easily by clamping over the top of an eyepiece. The smartphone is held in position with the help of tightening knobs that securely lock your phone in place. Some large and/or bulky phone cases (including folio style cases) may need to be removed for the phone to fit in the adapter. The adapter stands up to rigorous field use thanks to its robust, durable construction with a metal body.

Vortex 10x28 Diamondback HD Roof Prism Binoculars

The Vortex 10x28 Diamondback HD Roof Prism Binoculars provide superior optical performance with high durability. Its fully multi-coated optics deliver the highest performance images on the market for an amazingly low price. They feature highly-reflective multi-layer roof prisms that combine with multi-coated glass lenses to provide the best optical performance. These binos offer up to 10x magnification and field of view of 273 feet at 1,000 yards – making them suitable for mid-range activities.

Optical Construction

The Vortex Diamondback HD Binoculars is built with an HD Optical System at the heart, which is optimized with select glass elements to deliver an exceptional resolution with reduced chromatic aberration, and color fidelity with edge-to-edge sharpness. The multiple anti-reflective coatings increase light transmission giving you detailed imagery even at low-light surrounding. The Diamondback HD also features multi-layer dielectric prisms that ensure bright, clear, color-accurate images.

Sturdy and Durable Construction

The Vortex 10x28 Binoculars are extremely lightweight yet tough enough to last through the harshest elements. Thanks to O-ring seals and Argon gas purging, these binoculars offer complete waterproof and fogproof performance against moisture, dust, and debris. In addition, the ArmorTek coating on the exterior lens surface protects them from scratches, oil, and dirt. A rubber armored exterior ensures a secure, non-slip grip for maximum comfort. The binoculars are built to withstand recoil and impact.

Designed for Comfort

Vortex 10x28 Binoculars feature adjustable twist-up eyecups that maximize your comfort even when you are wearing eyeglasses. A diopter located on the right eyepiece adjusts for differences in a user's eyes. With the center focus wheel you can easily adjust the focus of both binocular barrels simultaneously. You can also mount these 10x28mm roof prism binoculars on a tripod or car window mount using a tripod adapter.


Celestron Basic Smartphone Adapter (1.25-Inch)

Configuration Core
Compatibility 1.25" Eyepieces
Color Black

Vortex 10x28 Diamondback HD Roof Prism Binoculars

Magnification 10x
Focus Type Center
Objective Lens Diameter 28mm
Angle of view 5.1 degree
Minimum Focus Distance 6 feet
Exit Pupil Diameter 2.8 mm
Prism System Roof

Vortex 10x28 Diamondback HD Roof Prism Binoculars

Weight 15.9 oz

Vortex 10x28 Diamondback HD Roof Prism Binoculars

Water-Resistant Yes
Fogproof Yes


Customer Questions
No Questions


Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

Vortex 10x28 Diamondback Binoculars with Smartphone Adapter Bundle

Vortex 10x28 Diamondback Roof Prism Binoculars with Smartphone Adapter Bundle SKU: DB201SPA

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