As mentioned, the Vortex Solo R/T 8×36 is predominantly a ranging reticle with silhouettes to help with range adjustments. This did not get in the way during our test; in fact, the ability to work out distances of objects was actually a useful feature. There’s no reason why a ranging scope can’t be used for other pursuits, so we decided the monocular was worth a look.
Plenty of light is transmitted through the 36mm objective lens, and the inclusion of BaK-4 prisms and multisurface coatings on the lens makes for a very useful and competent monocular.
Vortex Solo R/T 8×36 Monocular Review
Vortex Solo R/T 8×36 Monocular: Design
★★★★
- Very sturdy construction
- Extensive rubber armor
- Awkard focusing
The Vortex Solo R/T feels and looks the part. Its body is encased in very durable-looking rubber armor. The objective lens is well recessed into the body, providing lots of protection; we could safely stand the unit on its end without feeling like the glass might get scratched. The monocular is light enough not to be noticed if worn around the neck and tough enough to be dropped without too much worry — although we wouldn’t recommend this!
Specifications
Design: Roof Prism
Magnification: 8x
Objective lens: 36mm
Eye relief: 0.7-in (18 mm)
Weight: 10.7 oz (303 g)
Dimensions: 5.4 / 2.3 / 2.5-in (137 / 58 / 64 mm)
The Vortex Solo R/T has two twistable focus rings: One for the main eyepiece focusing and another for the reticle side. We found both very stiff and quite awkward to use, although, with continued use, they did loosen up somewhat. The main focus ring has only a quarter turn of range, which proved to be fiddly. An ideal ratio is one complete turn to enable fine adjustment, but the Solo R/T has to be refocused frequently to get a clear image.
Vortex Solo R/T 8×36 Monocular: Performance
★★★★
- Relatively large field of view
- Good low-light performance
- Very clear views with good contrast
The Vortex Solo R/T has an excellent 393-foot (120 meters) field of view at 1,000 yards (131.4 m/1000 m), and the quality of the multicoatings on the lens allowed for some pretty impressive views. We could use the unit in low-light conditions, with the help of the 36mm objective lens, which meant extended viewing long into dusk. There is a little pincushion distortion, which Vortex builds into its optics to help with globe effect distortion. This is used in most binoculars and monoculars, but it was apparent only under scrutiny.
Although the BaK-4 prisms are a nice addition, they are not dielectric coated, so we lose out on the reduced reflection and improved image brightness that comes with dielectric coatings. However, the 0.2-inch (5 mm) exit pupil and the 36 mm objective lens made for clear images in our tests. While watching mallards in one of our test areas, we could easily perceive the eyes and the fine details of plumage.
We were able to use the unit for some basic astronomy. While looking at the moon on a clear night, we could see the waxing crescent phase in some detail. Other views at this level of magnification aren’t possible.
Vortex Solo R/T 8×36 Monocular: Functionality
★★★
- Close focus (16 feet, or 5 m)
- Folding rubber eyecup
- MRAD-based ranging reticle
The Vortex Solo R/T has a close focus range of 16 feet (5 m). This limits the unit’s ability to watch butterflies and bird feeders up close, but it does have 0.7 inches (18 mm) of eye relief with the shroud folded. The rubber eyecup is well designed and very comfortable to use. It folds neatly out of the way for people who wear glasses and provides good lens protection.
The MRAD-based ranging reticle is used primarily on target ranges, where the gun or rifle is adjusted for accuracy using the system. We found it a really useful addition, as it allowed us to work out the relative sizes of grouped bird species within reason. The reticle includes a silhouette system where the silhouettes’ dimensions are accurate at a given range. This was a new system for us, but it was fun to use once we got the idea.
The focus adjustment on our test unit was very stiff. We found that we would have to remove the unit from our eye to focus properly. This is a shame, as monoculars tend to be good for quickly grabbing a shot of a flying bird or darting insect, and the ability to focus quickly with one hand is a common feature of some rivals. Once the eyepiece focus wheel was focused on the user, though, this was needed only once — so it was only the main focus that caused the problem. Over time, the stiffness may ease, but we had the test unit for a limited time.
User reviews of the Vortex Solo R/T 8×36 monocular
Users say the Vortex Solo R/T 8×36 monocular is super high-quality and results in excellent images. They also note that the monocular is durable and amply protected against damage and weather. Other comments mention the monocular’s excellent light-gathering ability and lightweight design.
Should you buy the Vortex Solo R/T 8×36 monocular?
Buy it if:
✅ You want a small, rugged design.
✅ You want sharp images with good contrast.
Don’t buy it if:
❌ You want top-quality image capture: Although the unit performs well, there is room for improvement.
❌ You want one-handed focus: There’s no separate focus wheel, and the mechanism is very stiff.
We found the Vortex Solo R/T 8×36 monocular to be a very capable performer in our tests. Its lightweight-yet-tough body is well armored and seems highly durable. The image clarity and the unit’s lowlight ability are impressive for a monocular at this price. BaK-4 prisms are a nice addition to the optic’s general quality and usability. The only downside is the stiff focus, which may improve over time.
If the Vortex Solo R/T 8×36 monocular isn’t for you
If the Vortex Solo R/T 8×36 monocular isn’t for you, we recommend looking at the Opticron Oregon 4 PC Oasis 10×42. This monocular has a raised focused wheel on the top of the chassis. Although this makes it larger than the Vortex Solo R/T, it avoids the problem of the focus ring being in the tube.
Alternatively, consider the Opticron Explorer WA ED-R 8×42. This monocular’s tube-mounted focus ring is closer to the objective lens end of the body, making it easier to use. It also has a bigger objective lens, which lets in more light than the Vortex Solo R/T. For the most extreme convenience and small size, take a look at the Nikon HG 5×15. We found this tiny monocular’s image clarity and sharpness hard to beat.
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