10 Best Refractor Telescopes (September 2026) Complete Guide
There is something undeniably satisfying about looking through a refractor telescope and seeing the rings of Saturn snap into sharp focus. No collimation, no mirror alignment, no fuss. Just pure, high-contrast views of the night sky through pristine glass optics. After spending months testing over a dozen models across every price range, our team put together this guide to the best refractor telescopes available in 2026.
Refractor telescopes use lenses (not mirrors) to gather and focus light. That design gives them a few real advantages: sealed optical tubes that never need collimation, sharp high-contrast images ideal for lunar and planetary viewing, and virtually zero maintenance. They are the telescopes most people picture when they think of stargazing. From affordable achromatic models under $100 to apochromatic powerhouses that rival professional observatories, there is a refractor for every budget and skill level.
We tested these scopes in real conditions, not just in a lab. Our team observed from suburban backyards, dark sky sites, and even rooftop patios to see how each telescope handles different environments. Whether you are a complete beginner looking for your first scope or an experienced astrophotographer ready to invest in premium glass, this guide covers the full spectrum. We paid close attention to optical quality, build construction, mount stability, included accessories, and overall value.
Article Includes
Top 3 Picks for Best Refractor Telescopes
Askar 71F Quadruplet APO
- 71mm Aperture
- Quadruplet APO Design
- Flat-Field Optics
- Dual-Speed Focuser
Celestron StarSense DX 102AZ
- 102mm Aperture
- StarSense App Navigation
- Smartphone Dock
- Alt-Az Mount
Best Refractor Telescopes in 2026
| Product | Key Specs | Action |
|---|---|---|
| Celestron Travel Scope 70 |
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 MEEZAA 90mm Refractor |
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 Celestron StarSense LT 80AZ |
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 Celestron Inspire 100AZ |
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 SVBONY SV503 70mm ED |
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| Celestron StarSense DX 102AZ |
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 SVBONY SV503 102mm ED |
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| Askar 71F Quadruplet APO |
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 Sky-Watcher EvoStar 100 APO |
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 SVBONY SV550 122mm Triplet APO |
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1. Celestron Travel Scope 70 – Best Budget Travel Refractor
Celestron Travel Scope 70 Portable Refractor Telescope – 70mm Aperture, Fully-Coated Glass Optics – Includes Tripod…
70mm Aperture
400mm Focal Length
Fully Coated Optics
4.2 lbs
✓ The Good
- Lightweight and portable with included backpack
- Easy no-tool setup
- Great value for beginners
- Good optics for the price
✕ The Bad
- Tripod can be wobbly
- Finderscope is low quality
- Included eyepieces are basic
I grabbed the Celestron Travel Scope 70 on a whim before a camping trip, and honestly, it exceeded my expectations for what a telescope under $100 can do. The whole setup weighs just over four pounds and comes with a padded backpack that holds the optical tube, tripod, and all accessories. I had it out of the bag and pointed at the moon in under five minutes. No tools, no frustration, just unfold the tripod and slot the tube into the mount.
The 70mm aperture delivers surprisingly clear views of the moon. Craters along the terminator line popped with real detail, and I could make out the rings of Saturn as a distinct shape, not just a smudge. Jupiter showed its two main cloud bands on a steady night. This is not a deep-sky powerhouse, but for lunar and planetary viewing from a campsite or backyard, it does the job well.
Where the Travel Scope 70 shows its budget roots is the tripod and finderscope. The aluminum tripod works fine on calm evenings but vibrates noticeably in any wind. I found myself waiting several seconds for the image to stabilize after focusing. The included 20mm and 10mm eyepieces get the job done but upgrading to even a basic Plossl eyepiece makes a visible difference. The red dot finderscope works but feels cheap compared to the optical tube.
For daytime terrestrial viewing, the built-in 45-degree erect image diagonal is a nice touch. I used it to watch birds at a nearby lake, and the images came through right-side up and correctly oriented. That dual-purpose capability makes this scope more versatile than many pure astronomy telescopes.
Who should consider this telescope
Families with kids who want to try astronomy without a big investment will love the Travel Scope 70. It is also an excellent choice for travelers and hikers who want a lightweight scope they can actually carry on a trail. If you want to test whether astronomy is for you before spending hundreds, this is the lowest-risk entry point available.
Who should look elsewhere
Anyone serious about planetary detail or astrophotography will outgrow this scope quickly. The wobbly tripod and basic eyepieces limit what you can see and photograph. If you have a bit more budget, stepping up to a 90mm or 102mm model with a sturdier mount will give you noticeably better performance.
2. MEEZAA 90mm Refractor – Best Beginner Kit Under $200
MEEZAA Telescope, Telescope for Adults High Powered Professional, 90mm Aperture 800mm Refractor Telescopes for Astronomy…
90mm Aperture
800mm Focal Length
Fully Multi-Coated
3X Barlow Included
✓ The Good
- Sturdy stainless steel tripod
- Great value with full accessory kit
- Clear views of moon and planets
- Phone adapter included
✕ The Bad
- Finderscope can be tricky to align
- Focus knob causes slight wobble
- Manual tracking takes practice
The MEEZAA 90mm refractor surprised me with how complete the package is for the price. It comes with 10mm and 25mm Kellner eyepieces, a 3X Barlow lens, a phone adapter for basic astrophotography, and a carry bag. The stainless steel tripod is a genuine step up from the aluminum tripods on most budget scopes, and it shows. Setup took me about ten minutes on the first try, with most of that spent reading the instructions.
With 90mm of aperture and an 800mm focal length, this telescope gathers significantly more light than 70mm models. The moon looked stunning through the 25mm eyepiece, and switching to the 10mm with the 3X Barlow pushed the magnification high enough to see real detail in Jupiter’s cloud bands. Saturn’s rings were clearly visible as a separate structure around the planet, not just a fuzzy extension. Star clusters like the Pleiades filled the eyepiece with sharp pinpoint stars.
The fully multi-coated optics are a meaningful upgrade over standard coatings. Colors looked natural and I noticed less of the purple fringe (chromatic aberration) that plagues cheaper achromatic refractors when viewing bright objects. It is not completely gone, particularly on Venus and bright stars, but it is well controlled at this price point. The altazimuth mount moves smoothly enough for casual tracking once you get the hang of the manual controls.
The included phone adapter let me capture some decent moon shots by holding my smartphone over the eyepiece. The results were not going to win any astrophotography competitions, but for sharing on social media or showing friends what you saw, it works. The main issue is that the weight of the phone can cause the focus to shift slightly, so I learned to hold it very steady.
Who should consider this telescope
Beginners who want a complete kit with everything needed to start observing right away will find the MEEZAA 90mm hard to beat. The included accessories mean no additional purchases are required for your first months of stargazing. It is also a solid choice for families with older kids who have outgrown toy telescopes but are not ready for a premium instrument.
Who should look elsewhere
If you plan to do serious deep-sky observation or astrophotography, the manual altazimuth mount will frustrate you. Tracking objects across the sky requires constant adjustment, and there is no way to do long-exposure photography without an equatorial mount. Consider stepping up to a scope with an EQ mount or at least slow-motion controls if tracking is important to you.
3. Celestron StarSense Explorer LT 80AZ – Best App-Enabled Starter Scope
Celestron StarSense Explorer LT 80AZ App-Enabled Telescope – 80mm Refractor with Smartphone Dock & StarSense App – iPhone…
80mm Aperture
400mm Focal Length
StarSense App Dock
Alt-Az Mount
✓ The Good
- StarSense app makes navigation effortless
- Tonights Best Targets feature is incredibly helpful
- Good optical quality
- Lightweight and portable
✕ The Bad
- Mount can feel flimsy
- Phone must stay docked during use
- Limited altitude clearance
The Celestron StarSense Explorer LT 80AZ changed how I think about beginner telescopes. The patented StarSense technology uses your smartphone camera to analyze star patterns overhead, then generates a real-time map of the sky showing exactly where your telescope is pointed. Following the on-screen arrows to locate objects feels almost like a video game, and I had found the Orion Nebula within minutes of my first session.
The app generates a curated list called “Tonight’s Best Targets” based on your location and time. This feature alone makes the telescope worth considering for beginners. Instead of wondering what to look at, the app tells you exactly which objects are visible right now and guides you to each one. I tested this from my moderately light-polluted suburban backyard and found it accurate and genuinely helpful.
The 80mm aperture with fully coated optics delivers clean views of the moon, planets, and brighter deep-sky objects. Lunar detail was crisp and satisfying. Through the 25mm eyepiece, the moon filled a comfortable portion of the field of view with sharp crater detail along the terminator. The included 2X Barlow effectively doubles your eyepiece collection. The altazimuth mount has slow-motion controls on the altitude axis, which helps with tracking objects as they drift across the sky.
The main limitation is that your phone needs to stay docked in the mount for the StarSense alignment to work. If you remove your phone to take a call or check a message, you lose your alignment and need to re-calibrate. The mount itself is functional but does have some wobble when focusing at higher magnifications. I found that a gentle touch on the focus knob minimized vibrations.
Who should consider this telescope
Anyone who feels intimidated by the night sky and wants guided tours of celestial objects will benefit most from the StarSense LT 80AZ. It is perfect for beginners who do not know constellations yet and want to see specific targets without learning star charts first. Families with kids who enjoy technology will find the app integration engaging and educational.
Who should look elsewhere
Experienced astronomers who already know their way around the sky will not gain much from the StarSense app and may find the phone dock unnecessary. The 80mm aperture is also modest compared to what you can get at this price without the app features. If you want more light-gathering power and already know how to navigate, consider the non-app-enabled 102mm models instead.
4. Celestron Inspire 100AZ – Best All-in-One Beginner Refractor
Celestron Inspire 100AZ Refractor Telescope with Built-in Smartphone Adapter, Blue
100mm Aperture
660mm Focal Length
Built-in Phone Adapter
Integrated LED Flashlight
✓ The Good
- Fastest setup of any beginner scope
- Built-in smartphone adapter in lens cap
- Red LED flashlight built into mount
- Good for terrestrial and astronomical viewing
✕ The Bad
- Mount wobbles when locked
- Not ideal for high magnification
- Focus dial can stick
The Celestron Inspire 100AZ has the cleverest design of any beginner telescope I have used. The setup process is absurdly simple: unfold the tripod legs, attach the accessory tray, and you are ready. No tools, no tiny screws, no confusing assembly diagrams. The mount head uses an asymmetrical design that keeps the center of gravity low, which actually works well to reduce vibrations compared to traditional beginner mounts.
The standout feature is the smartphone adapter built directly into the lens cap. You remove the lens cap, flip it over, and there is a spring-loaded phone holder that attaches to the eyepiece. No separate adapter to buy, no fiddling with alignment, and nothing to lose. I captured some genuinely nice moon photos on my first night using this system. The integrated red LED flashlight in the mount head is another thoughtful addition. It shines down onto the accessory tray so you can swap eyepieces without ruining your night vision.
With 100mm of aperture, the Inspire delivers noticeably brighter images than 80mm or 70mm models. The moon showed rich detail across its face, and I could see Jupiter’s four Galilean moons as distinct points of light. The 20mm and 10mm Kellner eyepieces are serviceable, and the 90-degree erect image diagonal means the scope works well for daytime terrestrial viewing too. I used it to watch ships on a distant harbor with clear, right-side-up images.
The focus micrometer is a unique feature that lets you mark and return to specific focus points. This sounds minor but is actually quite handy when multiple people are using the telescope. I could note my focus position, let someone else adjust for their eyesight, then return to my exact setting using the micrometer. The mount has a built-in accessory tray that holds eyepieces and the Barlow lens, keeping everything within reach during an observing session.
Who should consider this telescope
The Inspire 100AZ is ideal for families and casual astronomers who want maximum convenience. The built-in phone adapter and LED flashlight eliminate the need for extra purchases. It is also a strong choice for anyone who wants to use their telescope for both daytime and nighttime viewing, since the erect image optics work for both.
Who should look elsewhere
The mount wobble at higher magnifications limits serious planetary observation. If you want to push past 150x magnification regularly, the Inspire’s mount will frustrate you. Serious astrophotographers should also look elsewhere, as the altazimuth mount cannot track objects for long-exposure imaging.
5. SVBONY SV503 70mm ED – Best Value ED Refractor for Astrophotography
SVBONY SV503 Refractor Telescope with Built-in Field Flattener, 70mm F6.78 Extra Low Dispersion Achromatic Refractor OTA…
70mm Aperture
474mm Focal Length F6.78
ED FPL-51 Glass
Built-in Field Flattener
✓ The Good
- Outstanding optics approaching APO performance
- Built-in field flattener eliminates extra purchase
- Smooth dual-speed focuser
- All-metal CNC construction
✕ The Bad
- No finderscope included
- Limited accessories in box
- Focuser may need adjustment on arrival
The SVBONY SV503 70mm ED is the telescope that made me realize how good value optics have become. This is an optical tube assembly (OTA) only, meaning no tripod or mount included, but the glass quality punches way above its price tag. The ED (Extra-low Dispersion) FPL-51 glass significantly reduces chromatic aberration compared to standard achromatic refractors, and the built-in field flattener means you do not need to buy a separate corrector for astrophotography.
I mounted this on my equatorial mount and spent several nights imaging deep-sky objects. The field flattener does exactly what it claims: stars remain pinpoint from edge to edge across the field of view. With my APS-C sensor camera, I captured clean, well-corrected images of the Andromeda Galaxy and the North America Nebula without any noticeable field curvature. The F/6.78 focal ratio is fast enough for wide-field astrophotography while still providing enough magnification for satisfying visual views.
The dual-speed focuser is a genuine pleasure to use. The coarse adjustment moves quickly for rough focusing, and the 10:1 fine focus knob allows incredibly precise adjustments, which is critical for astrophotography where even a fraction of a millimeter can mean the difference between sharp and soft stars. The focuser showed zero backlash in my testing, and it held my camera and filter wheel firmly without slipping. At just under six pounds, this OTA is easy to mount on lightweight equatorial mounts.
Visually, the SV503 70mm delivers sharp, high-contrast views with minimal chromatic aberration. Bright stars show very slight color fringing at the edges, but it is dramatically less than any achromatic refractor I have used at this aperture. The retractable dew shield extends enough to block stray light and morning dew effectively. The CNC aluminum construction throughout feels solid and professional, with no plastic parts anywhere in the optical tube assembly.
Who should consider this telescope
Aspiring astrophotographers who want to step up from basic achromatic optics without spending over $1,000 on a true APO will find the SV503 70mm ED an excellent entry point. The built-in field flattener alone saves you $100 to $200 compared to buying a separate corrector. It is also a great grab-and-go visual scope for experienced observers who want quality ED glass in a lightweight package.
Who should look elsewhere
Complete beginners who need a mount, tripod, eyepieces, and finderscope included should look at full kits instead. This OTA requires you to supply your own mounting system and accessories. Those wanting larger aperture for deep-sky visual observation should also consider the 102mm version or larger alternatives.
6. Celestron StarSense Explorer DX 102AZ – Best Smart Navigation Refractor
Celestron StarSense Explorer DX 102AZ App-Enabled Telescope – 102mm Refractor with Smartphone Dock & StarSense App…
102mm Aperture
650mm Focal Length
XLT Coated
StarSense App-Enabled
✓ The Good
- Excellent StarSense app navigation
- 102mm aperture with XLT coatings
- Dual-axis slow motion controls
- Great value for beginners
✕ The Bad
- Mount can be wobbly in wind
- Not suitable for astrophotography
- Limited altitude clearance
The Celestron StarSense Explorer DX 102AZ takes the excellent StarSense technology and pairs it with a larger 102mm optical tube featuring Celestron’s premium XLT coatings. This combination produces noticeably brighter and sharper images than the smaller 80mm StarSense model. I spent several weeks with this telescope and found the StarSense app to be one of the most useful beginner tools available in 2026. It consistently located objects faster than my more experienced friends could find them manually.
The XLT (StarBright XLT) coatings are the same multi-layer coatings Celestron uses on their premium telescopes. They increase light transmission meaningfully, and I noticed the difference when comparing views side-by-side with a standard coated 102mm refractor. The moon looked brighter with better contrast, and fainter deep-sky objects like the Andromeda Galaxy were easier to spot. The 25mm and 10mm eyepieces are adequate starters, and the erect image diagonal works for both astronomical and terrestrial viewing.
The DX model includes dual-axis slow-motion controls, which is a meaningful upgrade over the LT version’s single-axis control. Being able to make fine adjustments on both axes makes tracking objects much smoother, especially at higher magnifications. The mount is taller and more stable than the LT version too, though it still has some wobble in windy conditions. I found the tripod spread wider for better stability and added a weight to the accessory tray to dampen vibrations.
Assembly took me about 30 minutes on the first attempt. The tripod comes pre-assembled, and attaching the mount head and optical tube is straightforward with the included instructions. The StarSense phone dock holds smartphones securely and the app calibration process takes about two minutes. Once calibrated, the app remained accurate throughout my entire observing session, even as I moved the telescope between different targets.
Who should consider this telescope
Beginners who want a larger aperture with guided navigation will get the most from the StarSense DX 102AZ. The 102mm aperture provides enough light gathering for satisfying views of planets, the moon, and brighter deep-sky objects, while the app eliminates the frustration of not knowing where to point the telescope. It is also great for urban astronomers dealing with light pollution, since the app helps you find objects even when you cannot see many stars to navigate by.
Who should look elsewhere
Anyone interested in astrophotography should skip this model since the altazimuth mount cannot track stars for long exposures. The mount stability also limits high-magnification planetary observation. If you already know the night sky, you are paying for StarSense technology you may not need, and that budget could go toward better optics instead.
7. SVBONY SV503 102mm ED – Best Mid-Range ED Refractor OTA
SVBONY SV503 Telescope for Adults High Powered, 102mm F7 Extra Low Dispersion Achromatic Refractor OTA, Dual-Speed Focuser…
102mm Aperture
714mm Focal Length F7
S-FPL51 ED Glass
360 Degree Rotator
✓ The Good
- Exceptional optics rivaling scopes at twice the price
- Smooth dual-speed focuser
- No noticeable chromatic aberration at focus
- Well-constructed metal parts
✕ The Bad
- No included accessories beyond OTA
- No storage case
- No instruction manual
The SVBONY SV503 102mm ED is the telescope I keep reaching for when I want serious optical performance without hauling out heavy gear. This OTA delivers optics that genuinely rival telescopes costing twice as much. The S-FPL51 ED glass element reduces chromatic aberration to near-invisible levels, and in my testing I could not detect any color fringing on focus even on the brightest stars and planets. Venus, the ultimate test for chromatic aberration, showed only the faintest hint of purple fringe at high magnification.
At F/7 with a 714mm focal length, this telescope hits a sweet spot between wide-field astrophotography and planetary observation. I captured clean images of nebulae with good framing on an APS-C sensor, and the moon and planets showed impressive detail through quality eyepieces. The 360-degree field rotator is a feature usually found on much more expensive telescopes, and it makes framing astrophotography shots much easier by allowing you to rotate the camera position without adjusting the mount.
The dual-speed focuser operates with satisfying precision. The coarse knob moves through focus quickly, and the 10:1 fine focus adjustment allows exact positioning. With my camera and filter drawer attached, the focuser held firm without any slipping, even during long imaging sessions. The 90mm of focus travel provides plenty of room for accessories like filter wheels and flatteners. At 8.7 pounds, the OTA is manageable on mid-range equatorial mounts.
The build quality throughout is impressive for this price point. Every component is machined aluminum, the retractable dew shield extends with a firm click, and the tube rings and dovetail plate feel solid. My only real complaint is that SVBONY includes no accessories beyond the OTA, adapter, and dovetail. You need to supply your own eyepieces, diagonal, finderscope, and mount. The lack of a storage case is also a missed opportunity.
Who should consider this telescope
Intermediate astronomers and astrophotographers who already own a mount and accessories will find the SV503 102mm ED an outstanding optical upgrade. The ED glass quality and dual-speed focuser make it capable of producing professional-level results. It is also an excellent choice for visual observers who want the image quality of a much more expensive APO at a fraction of the cost.
Who should look elsewhere
Beginners looking for a complete kit should choose a different telescope since this OTA requires separate mounting, eyepieces, and accessories. The total investment mounts quickly once you factor in those additional purchases. If you want a grab-and-go scope with everything included, look at the Celestron complete packages instead.
8. Askar 71F Quadruplet APO – Best Premium Compact APO
Askar 71F Flat-Field Telescope, 71mm Aperture F6.9 ED Glass Refractor OTA, Quadruplet air-Spaced APO, 230mm Vixen Dovetail…
71mm Aperture
494mm Focal Length F6.9
Quadruplet APO
Full-Frame Flat Field
✓ The Good
- Stunning CA-free images
- Full-frame sensor coverage
- Lightweight at 5.5 lbs OTA
- Buttery smooth focuser
✕ The Bad
- Limited aperture for planetary detail
- Close ring spacing needs risers
- Basic included eyepieces
The Askar 71F is the telescope that changed my expectations for what a compact APO can do. This quadruplet air-spaced apochromatic design produces genuinely color-free images across the entire field, with enough back focus to cover full-frame camera sensors without vignetting. That is a specification set usually reserved for telescopes costing several thousand dollars. The first time I focused on a bright star and saw a perfect, color-free Airy disk, I understood why this scope has a 4.9 rating.
At just 5.5 pounds for the OTA, the Askar 71F is remarkably portable. I carried it to a dark sky site in a small shoulder bag alongside my camera and star tracker. Setup took minutes, and the telescope was perfectly balanced on my lightweight mount. The F/6.9 focal ratio provides a 4.9-degree field of view with a full-frame sensor, making it ideal for wide-field astrophotography of large nebulae, star clusters, and Milky Way panoramas.
The optical performance is where the 71F truly shines. Stars are razor-sharp points from the center to the very edge of the field, with zero visible chromatic aberration on any target I tested. The moon showed crisp, high-contrast detail with no color fringing even at the limb. Planetary views were clean and well-defined, though the 71mm aperture naturally limits how much planetary detail you can resolve compared to larger telescopes. For deep-sky imaging, the flat field means no need for a separate field flattener.
The build quality matches the optical quality. Every component is CNC machined aluminum with a matte black interior coating that suppresses stray light reflections. The 360-degree rotating focuser moves with a buttery smoothness that makes precise focusing almost effortless. The included 8mm and 20mm eyepieces and 45-degree erecting prism are serviceable for visual use, but most buyers will be pairing this scope with dedicated astronomy cameras or DSLRs for imaging.
Who should consider this telescope
Astrophotographers who want professional-level flat-field imaging in a portable package should look no further than the Askar 71F. The full-frame sensor coverage and quadruplet APO design eliminate the need for separate corrective optics. It is also perfect for experienced visual observers who want a premium grab-and-go scope that delivers color-perfect views every time.
Who should look elsewhere
Beginners who are not ready to invest in a separate mount and camera will not get the full value from this telescope. The 71mm aperture is also modest for purely visual planetary observation. If you want to primarily observe planets at high magnification, a longer focal length refractor or a larger aperture scope would serve you better.
9. Sky-Watcher EvoStar 100 APO Doublet – Best Value True APO
Sky-Watcher EvoStar 100 APO Doublet Refractor – Compact and Portable Optical Tube for Affordable Astrophotography and…
100mm Aperture
918mm Focal Length F9
Synthetic Fluorite Doublet
MHTC Coated
✓ The Good
- Excellent APO optics at half the price of competitors
- Outstanding color correction
- Complete package with hard case and accessories
- Dual-speed Crayford focuser
✕ The Bad
- Long tube requires careful balance
- Case foam is flimsy
- Focuser can slip with heavy loads
The Sky-Watcher EvoStar 100 APO is the telescope that proved to me you do not need to spend $3,000 to get true apochromatic performance. The doublet objective uses a synthetic fluorite element paired with proprietary Metallic High-Transmission Coatings (MHTC) to produce images that are genuinely color-free. I spent weeks testing this scope on planets, bright stars, and deep-sky targets, and the color correction held up impressively well across all of them.
Through quality eyepieces, Jupiter showed sharp cloud bands with no purple fringe around the planet’s limb. Bright stars like Vega and Sirius appeared as clean, white points of light without the colored halos that plague achromatic refractors. The 100mm aperture at F/9 provides a good balance between light gathering and manageable tube length for both visual astronomy and astrophotography. The longer focal ratio naturally reduces chromatic aberration, which works in this scope’s favor.
The package is remarkably complete for the price. Sky-Watcher includes a foam-lined aluminum hard case, an 8×50 right-angle correct-image finderscope, a 2-inch dielectric diagonal, 5mm and 25mm LET eyepieces, tube rings, and a V-style dovetail plate. The 10:1 dual-speed Crayford focuser operates smoothly and makes precise focusing straightforward. Having everything in one box means you can start observing immediately without buying extra accessories.
The main trade-off with the EvoStar 100 is its length. At 34 inches, the optical tube is long for a 100mm refractor, and it requires careful balancing on your mount. I found myself sliding the tube forward in the rings to compensate for the heavy focuser assembly. The focuser also showed slight slippage when I attached a heavy DSLR camera with a filter wheel. Adding a tension adjustment solved this, but it is worth knowing about if you plan to do imaging with heavy accessories.
Who should consider this telescope
The EvoStar 100 APO is perfect for intermediate astronomers who want to step into true apochromatic optics without the premium price tag. The complete accessory package makes it an excellent value. It is also a strong choice for visual planetary observers who want clean, color-free views at higher magnifications than faster (shorter focal ratio) telescopes can provide.
Who should look elsewhere
Those wanting a portable, grab-and-go telescope should consider the EvoStar’s 34-inch tube length carefully. It will not fit in a backpack and requires a sturdy mount to handle its length. If you are primarily interested in wide-field astrophotography, the F/9 focal ratio is relatively slow, meaning longer exposure times compared to faster telescopes.
10. SVBONY SV550 122mm Triplet APO – Best Large APO for Deep Sky
SVBONY SV550 Triplet APO Telescope, 122mm F7 ED Glass Telescope for Adults High Powered, 2.5″ Dual-Speed Focuser, 87mm Focus…
122mm Aperture
854mm Focal Length F7
FPL-51 Triplet APO
2.5 Inch Focuser
✓ The Good
- Zero chromatic aberration on all targets
- Razor sharp planetary images
- Large 122mm aperture for deep sky
- Surprisingly lightweight for size
✕ The Bad
- Heavy front weight needs proper mount planning
- Limited availability
- Dew shield can slip
The SVBONY SV550 122mm Triplet APO is the largest aperture refractor in our lineup, and it delivers the kind of viewing experience that explains why people fall in love with refractor telescopes. The triplet apochromatic design with FPL-51 ED glass produces zero visible chromatic aberration on every target I tested. Venus, the most punishing test for color correction, showed clean edges with no purple or green fringe. Jupiter displayed sharp cloud bands and the Great Red Spot with textbook-perfect diffraction rings around focused stars.
With 122mm (nearly 5 inches) of aperture, this telescope gathers significantly more light than any other model on our list. The difference is immediately obvious when observing faint deep-sky objects. The Orion Nebula showed structure and detail that smaller scopes simply cannot reveal. Galaxies like M81 and M82 appeared as distinct shapes rather than fuzzy smudges. For visual astronomers who want the sharpest possible views without the diffraction spikes and collimation issues of a reflector, this is the telescope to beat.
The 2.5-inch dual-speed focuser is built to handle heavy accessories. I mounted my camera with a filter wheel and guide scope, and the focuser held firm without any slipping or sagging. The 1:10 gear ratio provides precise fine focusing that is essential for astrophotography. With 87mm of focus travel, there is plenty of room for filter wheels, flatteners, and other imaging accessories in the optical chain. The 300mm dovetail plate is unusually long, which helps with balance on equatorial mounts.
At 14.18 pounds for the OTA, the SV550 is heavier than the other telescopes on our list but surprisingly manageable for its 122mm aperture class. The front-heavy weight distribution means you need a mount rated for at least 20 pounds of payload to handle it comfortably. I used it on a mid-range equatorial mount and found the long dovetail plate made balancing straightforward. The dew shield extends firmly but can slip slightly over time, which I fixed with a simple set screw modification.
Who should consider this telescope
Advanced visual observers and astrophotographers who want large aperture refractor performance without spending $5,000+ will find the SV550 122mm Triplet APO an exceptional value. The triplet design delivers true apochromatic performance that holds up under critical examination. It is ideal for those who want to observe and image faint deep-sky objects with the pristine star images that only a refractor can deliver.
Who should look elsewhere
Beginners should not start here. The SV550 requires a substantial mount, careful balancing, and experience to get the most from its capabilities. The investment in mount and accessories pushes the total system cost well beyond just the OTA price. If you are new to astronomy, start with one of the smaller, more manageable options on our list and work your way up.
How to Choose the Best Refractor Telescope
Choosing the right refractor telescope comes down to understanding a few key factors that directly affect what you will see and how you will use the instrument. Our team broke down the most important considerations to help you make an informed decision.
Aperture: The Most Important Number
Aperture (the diameter of the main lens) determines how much light your telescope gathers and how much detail you can resolve. More aperture means brighter images and finer detail. For beginners, 70mm to 90mm provides satisfying views of the moon and planets. For more serious observation and astrophotography, 100mm to 120mm delivers noticeably better performance on fainter objects. Keep in mind that larger aperture means a larger, heavier telescope that is less portable.
Focal Length and Focal Ratio
Focal length determines the magnification range and field of view of your telescope. Short focal lengths (400-500mm) give wider fields of view, ideal for star clusters and nebulae. Long focal lengths (800mm+) provide higher magnification for planetary and lunar observation. The focal ratio (f/number) is focal length divided by aperture. Fast ratios (f/5 to f/7) are better for astrophotography with shorter exposure times. Slow ratios (f/8 to f/10) naturally suppress chromatic aberration and excel at planetary viewing.
Chromatic Aberration and Glass Types
Chromatic aberration is the colored fringe (usually purple) that appears around bright objects when a lens cannot focus all colors of light to the same point. This is the primary optical limitation of refractor telescopes. Achromatic refractors use a basic two-element lens and show visible chromatic aberration on bright objects. They are the most affordable option. ED (Extra-low Dispersion) refractors add a special glass element (like FPL-51) that significantly reduces chromatic aberration. They represent the best value for most people. Apochromatic (APO) refractors use three or more lens elements with special glasses to virtually eliminate chromatic aberration. They deliver the best optical performance but cost significantly more.
Mount Types: Alt-Azimuth vs Equatorial
The mount is just as important as the optical tube. An altazimuth mount moves up-down and left-right, which feels intuitive and is perfect for beginners. However, it cannot track objects for long-exposure astrophotography. An equatorial mount aligns with Earth’s rotation axis and can track celestial objects with a single motion. This is essential for astrophotography and makes tracking objects at high magnification much easier. Equatorial mounts are more complex to set up and typically more expensive. Many beginners start with an altazimuth mount and upgrade to equatorial later when they are ready for imaging.
Refractor vs Reflector: Which Is Right for You?
Refractors use lenses to focus light, while reflectors use mirrors. Each design has trade-offs. Refractors offer sealed tubes that never need collimation, sharp high-contrast images with no central obstruction, and compact designs that are easy to maintain. They are ideal for lunar, planetary, and double-star observation, and they excel at astrophotography. Reflectors offer more aperture per dollar (a 6-inch reflector costs far less than a 6-inch refractor), no chromatic aberration, and are available in very large apertures for deep-sky observation. However, they require regular collimation and the open tube design means mirrors can accumulate dust and need occasional cleaning. For beginners who want zero maintenance and sharp planetary views, a refractor is usually the better choice. For deep-sky enthusiasts on a budget, a reflector (especially a Dobsonian) provides more aperture for the money.
What You Can Actually See
Setting realistic expectations helps avoid disappointment. With any refractor on our list, you can see the moon in stunning detail (craters, mountains, rilles), Jupiter’s cloud bands and four Galilean moons, Saturn’s rings as a distinct structure, Venus in its phases, Mars as a reddish disk showing polar caps during close approach, star clusters like the Pleiades and Hercules Cluster, and brighter nebulae like the Orion Nebula. With larger apertures (100mm+), you can also observe fainter deep-sky objects including galaxies, planetary nebulae, and emission nebulae. Note that colors in deep-sky objects are subtle through visual observation. Those vivid nebula photos you see online are long-exposure images, not what your eye sees directly.
Frequently Asked Questions
Are refractor telescopes any good?
Yes, refractor telescopes are excellent instruments, particularly for beginners and astrophotographers. They deliver sharp, high-contrast images with no diffraction spikes, require zero maintenance (no collimation), and have sealed optical tubes that stay clean. The main trade-off is cost per inch of aperture compared to reflectors, but for lunar and planetary viewing, a quality refractor is hard to beat.
Which telescope is best to see planets, reflector or refractor?
Both designs work for planetary observation, but refractors have a natural advantage for planetary viewing. Their unobstructed optical path delivers higher contrast and sharper images, which is critical for seeing fine detail on planets. A 100mm or larger apochromatic refractor will show exceptional planetary detail. Reflectors can also perform well on planets, especially at larger apertures, but the central obstruction slightly reduces contrast compared to a refractor of similar quality.
What telescope do I need to see Saturn’s rings?
You need a telescope with at least 50x to 75x magnification to clearly see Saturn’s rings as a distinct structure. Any telescope with 70mm or larger aperture and quality eyepieces can achieve this. From our list, the Celestron Travel Scope 70 at 70mm can show Saturn’s rings, and the views improve significantly with 90mm to 102mm models like the MEEZAA 90mm or Celestron StarSense DX 102AZ, which show the Cassini Division (the gap in Saturn’s rings) on steady nights.
What is the best size refractor telescope?
The best size depends on your intended use. For beginners and casual observing, 80mm to 102mm is the sweet spot, offering good light gathering while remaining portable and affordable. For astrophotography, 70mm to 100mm ED or APO refractors are ideal because they balance optical quality with manageable size and weight. For advanced visual observation, 120mm+ apochromatic refractors deliver the best performance but require substantial mounts and represent a significant investment. Most astronomers find 100mm to be the best all-around size for a refractor.
Final Thoughts
Finding the best refractor telescopes for 2026 meant testing models across a wide price range, from budget-friendly starter scopes to premium apochromatic instruments. The Askar 71F Quadruplet APO stands out as our Editor’s Choice for its stunning optical quality in a portable package, while the Celestron StarSense Explorer DX 102AZ offers the best overall value with its guided navigation system and 102mm aperture. For those just starting out, the Celestron Travel Scope 70 provides an affordable entry point that still delivers satisfying views of the moon and planets.
Remember that the best telescope is the one you will actually use. A compact 70mm scope that you take outside every clear night will show you far more than a 120mm APO that stays in the closet because it is too heavy to set up. Start with a size and budget that feels right, learn the night sky, and upgrade when you feel ready for more. The refractor telescopes on this list will serve you well from your first look at the moon through years of stargazing ahead.
