Athlon Ares G2 15-45x65 Review: Impressive Value With a Few Tradeoffs
Finding a spotting scope with good optical performance, useful features, and a manageable price can be a challenge. The Athlon Ares G2 15-45x65 brings a lot to the table, including UHD glass, a rotating collar, an integrated Arca-style mounting foot, and an interchangeable eyepiece.
After spending time looking through it, comparing it with my Maven CS.1A, and using it for digiscoping, I came away impressed with the value. It has some limitations at higher magnification, and it wouldn’t be my first choice for an ultralight setup. But for someone who wants one spotting scope for outdoor use and time at the range, it deserves a closer look.
Specifications and Features
The angled Ares G2 I reviewed has a 65mm objective lens and a 15–45x zoom eyepiece. Here are the specifications discussed in my review:
FeatureSpecificationMagnification15–45xObjective diameter65mmListed weight45.9 ouncesWeight on my scale44.53 ouncesLengthApproximately 11.9 inchesField of view at 1,000 yards171 feet at 15x; 81 feet at 45xEye relief16–19mmClose focus13.1 feetChassisAluminum alloyPurgingArgonTripod mountingIntegrated Arca-style foot
At just under 12 inches long, it’s reasonably packable, although it sits toward the larger end of what I would consider a compact spotting scope.
Build Quality: A Solid, Robust Feel
The Ares G2 feels substantial in the hand. Its aluminum alloy chassis, rubber armor, and overall construction gave me a good impression of its build quality.
That solid feel comes with some weight. My sample weighed 44.53 ounces, slightly less than the listed 45.9 ounces, but still enough to notice in a backpack.
For range use or trips where weight isn’t the main concern, that wouldn’t bother me much. For longer backpacking trips where every ounce matters, I would look carefully at lighter alternatives before deciding.
Built-In Sunshade
One feature I appreciated was the built-in sunshade. It gives you a convenient way to shade the objective without carrying a separate accessory.
It’s a useful addition to a scope in this size and price category, and something I was glad to see included.
Rotating Collar
The rotating collar is another practical feature. Being able to rotate the angled eyepiece makes it easier to get a comfortable viewing position, particularly when looking downhill or working around an awkward tripod setup.
Integrated Arca-Style Foot
The mounting foot fit nicely in most of the Arca-style clamps I used during testing.
I like having that compatibility built into the scope. It saves me from attaching a separate plate and gives me one less connection to check for looseness.
Focus and Magnification Controls
The focus mechanism was a little stiff when I first received the scope. It could take some effort to get moving, but once it started turning, the movement was smooth.
Interestingly, I found that focusing resistance easier to work with at high magnification than I expected.
Compared with my Maven CS.1A, the Athlon felt more forgiving when making small focus adjustments. The Maven’s focus control was smoother, but I found it more sensitive when trying to dial in a precise image at higher power.
That was particularly noticeable while digiscoping. Small adjustments on the Athlon felt easier to manage without repeatedly moving past the best focus.
The magnification ring also worked smoothly. In my opinion, it felt slightly smoother than the zoom control on my Maven CS.1A. The eyecup had a similarly refined feel, which added to my positive impression of the scope’s construction.
Optical Performance: Best Between 15x and 35x
The Ares G2 delivered a sharp, pleasing image at lower magnifications. I found its strongest performance was in approximately the 15x–35x range.
Within that range, overall sharpness and edge clarity were impressive for the price. In many viewing situations, it was difficult to pick out meaningful differences between the Athlon and the Maven CS.1A.
At 40x and 45x, the image started to soften. The additional magnification was available when I wanted a closer look, but it didn’t maintain the same crispness I saw at lower settings.
That’s an important expectation to have going in. If you expect the image to remain equally sharp throughout the entire zoom range, this scope may leave you wanting more.
Color and Chromatic Aberration
Colors generally appeared neutral to my eyes, although the Athlon looked slightly warmer than the Maven in some situations.
Chromatic aberration was well controlled through much of my testing. However, at higher magnification in early or late light, I noticed color fringing along some edges, including the backs of animals.
It wasn’t something that dominated every view, but it became more noticeable as conditions got challenging.
Athlon Ares G2 vs. Maven CS.1A
The Maven CS.1A was a useful comparison because the two scopes were close enough optically to make the differences worth examining.
In my testing, the Maven had a slight clarity advantage, especially when I compared detail on eye charts. During general observation at lower and middle magnifications, though, the Athlon held up very well.
The handling differences stood out, too:
Maven CS.1A: Smoother focus movement and a slight advantage in fine detail.
Athlon Ares G2: More forgiving focus adjustments at higher magnification and a slightly smoother zoom ring in my experience.
I also filmed a separate comparison with eye charts and animals at different distances. That footage provides a better sense of the differences than specifications alone.
Low-Light Performance
At 15x, the Ares G2 has an exit pupil of approximately 4.3mm. At 45x, that drops to approximately 1.4mm.
In use, higher magnification became less rewarding as the light faded. Image softness and color fringing were more apparent, and I preferred backing off the zoom.
For general observation, I was pleased with what the scope offered. But if your main priority is filming wildlife at first or last light while using high magnification, I would consider a larger-objective spotting scope. The tradeoff, of course, is a larger and heavier setup.
Optional Reticle Eyepiece
Another feature discussed in my review was the optional fixed 22x eyepiece with a mil reticle.
That gives the scope additional flexibility for range use. A mil reticle can provide a reference for measuring angular distances and estimating range when the target’s size is known; it isn’t an electronic rangefinder.
The eyepiece costs extra, but being able to switch between a reticle eyepiece and the standard 15–45x zoom adds versatility for someone who wants to use the same scope in different settings. Confirm compatibility before purchasing an additional eyepiece.
Who Is the Ares G2 For?
At the time of my review, I viewed the Ares G2 as a strong option for someone shopping below $1,000 who wanted good image quality and plenty of useful features.
It makes sense for outdoor observers, hunters, and range users who can accept some additional weight in exchange for its construction and versatility.
It’s less compelling if your priorities are the lightest possible pack or premium image quality at maximum magnification. Those are the areas where I would consider spending more or choosing a different format.
What I Liked—and What I Didn’t
What stood out:
Sharp images through much of the 15x–35x range.
Robust construction and a quality feel.
Built-in sunshade and rotating collar.
Integrated Arca-style mounting foot.
Smooth magnification adjustment.
Forgiving fine-focus adjustments at higher power.
Optional interchangeable reticle eyepiece.
The tradeoffs:
Noticeable weight for a compact setup.
Some initial stiffness in the focus mechanism.
Image softening around 40x–45x.
More visible color fringing at high power in challenging light.
My Final Take
The Athlon Ares G2 15-45x65 isn’t perfect, but I think it offers excellent value.
Its best optical performance comes at lower and middle magnifications, where it delivers a sharp image that compares well with my Maven CS.1A. The rotating collar, sunshade, integrated mounting foot, and interchangeable eyepiece make it a versatile package.
If you can live with the weight and understand its limitations at maximum power, this is a spotting scope worth considering.
Have you used the Athlon Ares G2? Leave a comment with your experience, or let me know which spotting scopes you’d like to see compared in this price range.
Stay connected to the wild.
Chris — Ignited by Nature
