Vortex Diamondback HD 8x42 Review

The Vortex Diamondback HD 8x42 offers a near-perfect balance of optical performance and price, providing an experience that feels high-end yet falls squarely into the middle of the price range.

Performance Comparison

Clarity

Outside of the uber-expensive, multi-thousand dollar binoculars we tested, the Vortex Diamondback HD 8x42 provided one of the clearest images we experienced throughout our testing.

In all of our tests, the Vortex Diamondback HD 8x42 consistently provided crystal clear images. Even in less-than-optimal lighting scenarios, we easily picked out small distinguishing features of finches and chickadees at upwards of 30 feet. Perhaps most importantly, that clarity stayed consistent from the center and nearly all the way out to the edges of the image. This produced a very immersive viewing experience that nearly conjured a David Attenborough voice-over every time we found a new critter to look at.

It's hard to come up with any downsides regarding the clarity of the Vortex Diamondback HD 8x42. However, we'd say that the very edges of the image lose a bit of clarity, but this never negatively impacted our viewing experience. Additionally, when looking towards the sun (and "towards" is the operative word here, we feel obligated to state the obvious that one should never look directly into the sun, especially when using binoculars), the lens produced yellow glares on the edges of the image slightly and a subtle haze. Here again, however, we never felt like that glare or haze significantly impacted our experience using these bins.

Brightness

This is where the Vortex Diamondback HD 8x42 truly shines (pun intended). These binoculars provided some of the most impressive brightness we've seen in this price range.

The Vortex Diamondback HD 8x42 are exceptionally good in low light too. When using them in the dawn and dusk hours, only the much more expensive pairs we tested provided brighter images. Even with the sun barely peeking over the horizon, we were able to make out the different subtle blue tones on a Steller's jay.

Perhaps more noticeable is the Vortex Diamondback's relative performance in medium light, such as midday in a shaded forest. When comparing these to the main top-rated binoculars in their price class, it felt like the images had the contrast cranked up a few notches in these situations. We were able to notice much more detail at these times thanks to the brighter image. Especially for bird watchers, this translates into a far more enjoyable experience.

Comfort

The Vortex Diamondback HD 8x42 are some of the most comfortable binoculars we've used.

One thing that can make a pair of bins so much more comfortable in hand are thumb indents. These little grooves in the bottom of the barrels can be the difference between an awkward beer-can-like grip and a comfortable, relaxed pinch. Perhaps there is some cost-prohibitive engineering hurdle to making these indents that we're unaware of because they seem to only be present in the most expensive binoculars on the market. The Vortex Diamondback HD 8x42 is a refreshing exception to this rule, as the bins sport ergonomic thumb grooves that make them very comfy to hold. That is complemented with a Goldilocks, not-too-sticky, not-too-slippery rubber coating that allows you to easily change hand position while focusing, yet provides a secure grip when needed.

Field of View

Offering a field of view of 346 feet at 1000 yards, the Vortex Diamondback HD 8x42 is less than the manufacturer specifications, but a bit better than the average of our test group. Some of its closest competitors provide slightly wider fields of view, but the difference is not stark enough to be noticed by any but the most attentive binocular users.

Ease of Adjustment

Everything about these binoculars feels easy to adjust. The focus knob moves freely yet has just enough resistance to easily stop it at the desired point. The diopter knob is slightly stiffer but still relatively easy to adjust when needed, and that extra stiffness makes it less likely you'll accidentally throw the diopter out of whack during normal use. Sure, some other models have slightly more creative diopter designs that are a bit more user-friendly, but overall these bins are just fine.

Close Focus Range

We measured an impressive close focus range of just 5.3 feet, one of the best in the field. Sure, some pairs provide a slightly closer focus range, but 5.3 feet means you'll probably be able to get a butterfly in focus if you're lucky enough to have one land on your shoe, and it's hard to ask for much more than that.

We usually don't discuss binocular accessories because they're typically just the standard neck strap and carrying case, neither of which tend to differentiate one pair from another. However, the Vortex Diamondback HD 8x42 offers a unique dual shoulder strap for its carrying case that places the case securely on your chest/stomach (think a baby carrier but for binoculars). Two more straps connect the binoculars to the case, so you can remove the binoculars and use them while they remain attached to you.

This design is unique, and we like what they're going for. However, we personally did not find the design all that useful. The main advantage of a double shoulder strap for binoculars (often affectionately referred to as a binocular bra) is that you can sort of lean your hands against the straps as you peer through the bins. In fact, many of these straps are elastic for that very reason. Leaning gently against this tension can go a long way towards reducing handshake, resulting in a better image. However, the design of Vortex's case doesn't provide this advantage. Additionally, while it might be nice to have your binoculars pinned securely against you and in a protective case while bushwacking, we think all of the extra straps would be a hindrance in such a situation. Again, this is just our opinion, and for some, this may be exactly the accessory you've been pining for.

Should You Buy the Vortex Diamondback HD 8x42?

The Vortex Diamondback offers incredible optical quality and brightness at a relatively reasonable price, making it one of the best values of all the many binoculars we've tested. We think most casual users will be thrilled with the quality of this pair — especially for the price.

What Other Binoculars Should You Consider?