Reflector or refractor? It is the first real decision most telescope buyers face, and the answer depends on what you plan to observe, how much maintenance you tolerate, and your budget. After analyzing 78 active reflectors and refractors in our database, the short version: reflectors give you more aperture per dollar (averaging 149mm for $580), while refractors are lighter, lower maintenance, and more portable (averaging 4.3kg vs 12.7kg).
Quick Answer
Choose a refractor if you want a grab-and-go telescope that requires zero maintenance, delivers sharp contrast on the Moon and planets, and you are comfortable with smaller apertures (typically 60-102mm in beginner price ranges).
Choose a reflector if you want the most light-gathering power for your money, plan to observe deep sky objects like galaxies and nebulae, and do not mind occasional mirror alignment (collimation).
How They Work
These two designs collect light in fundamentally different ways.
Refractors use a glass lens (the objective) at the front of the tube to bend incoming light to a focal point at the back, where you place the eyepiece. The tube is sealed, so dust and moisture stay out. This is the classic "pirate spyglass" design, and it has been around since Galileo's time.
Reflectors use a curved mirror at the bottom of an open tube to bounce light back up to a smaller secondary mirror, which redirects it to an eyepiece on the side of the tube. Isaac Newton invented this design in 1668 to avoid the color fringing that plagued early refractors. The Newtonian reflector remains the most common type for amateur astronomy.
The design difference has practical consequences for everything from image quality to maintenance to price.
Head-to-Head Comparison
| Factor | Refractor | Reflector |
|---|---|---|
| Light collection | Lens (objective) | Mirror (primary) |
| Typical aperture | 60-102mm (beginner) | 114-200mm (beginner) |
| Avg. price per mm of aperture | $4.07/mm | $3.17/mm |
| Maintenance | None | Periodic collimation |
| Tube design | Sealed | Open (dust enters) |
| Chromatic aberration | Yes (achromats) | No |
| Central obstruction | No | Yes (secondary mirror) |
| Average weight | 4.3kg (9.5 lbs) | 12.7kg (28 lbs) |
| Cooldown time | Minimal | Longer (larger mirrors) |
| Avg. overall score | 61 | 68 |
| Avg. deep sky score | 33 | 46 |
| Avg. planetary score | 35 | 43 |
By the Numbers: What Our Database Shows
We scored every telescope in our database across seven performance dimensions. Here is how reflectors and refractors compare in aggregate across 78 active products (21 reflectors, 57 refractors).
Price and value: Refractors average $405 with a value score of 72, while reflectors average $580 with a value score of 64. But this comparison is misleading on its own. The average refractor aperture is 98mm; the average reflector aperture is 149mm. You are paying more for reflectors because you are getting significantly more telescope.
Aperture per dollar: Reflectors cost an average of $3.17 per millimeter of aperture. Refractors cost $4.07 per millimeter. That 28% premium means a $500 budget buys you roughly 158mm in a reflector versus 123mm in a refractor. In practical terms, the reflector gathers 65% more light.
Performance scores: Reflectors outscore refractors in every performance category: overall (68 vs 61), deep sky (46 vs 33), planetary (43 vs 35), and astrophotography (51 vs 32). The beginner score is a tie at 41 each, reflecting the maintenance tradeoff: reflectors offer better optics but demand more from the user.
Weight: Refractors average 4.3kg (9.5 lbs) versus 12.7kg (28 lbs) for reflectors. If portability matters, this is the single biggest differentiator.
When to Choose a Refractor
You want zero maintenance. A refractor's sealed tube means no collimation, no dust on the mirrors, and no cooldown surprises. Set it up and observe. This makes refractors particularly well-suited for beginners who do not want to learn mirror alignment before their first night out. If you are still deciding whether to start with binoculars instead, see our binoculars vs telescope guide.
You observe from a balcony or travel frequently. At an average of 4.3kg, most refractors fit in a backpack. A Celestron Travel Scope 80 weighs just 2.0kg (4.5 lbs) and folds into a carry case. Good luck doing that with a 130mm Newtonian.
Your targets are the Moon and planets. Refractors produce high-contrast images without the diffraction spikes caused by a reflector's secondary mirror spider vanes. For lunar craters and planetary detail, a quality refractor punches above its aperture class. Check our best telescopes for planets and galaxies guide for top-scoring options.
You are buying for a child. Refractors are harder to break, require no adjustment, and the eyepiece is at the back of the tube (intuitive to look through). See our best telescopes for kids guide.
The tradeoff: You get less aperture for your money. A $300 refractor typically maxes out at 102mm. A $300 reflector can reach 130-150mm, gathering 60-120% more light.
When to Choose a Reflector
You want the most aperture for your budget. This is the reflector's defining advantage. A Celestron AstroMaster 130EQ-MD delivers 130mm of aperture for $297. To match that aperture in a refractor, you would spend $500 or more, and options above 102mm become scarce at consumer prices. For the ultimate aperture-per-dollar option, consider a Dobsonian, which puts all your budget into the optics rather than the mount.
You plan to hunt deep sky objects. Galaxies, nebulae, and star clusters demand light. The average reflector deep sky score in our database is 46 versus 33 for refractors. That gap comes directly from aperture: more mirror area means more photons reaching your eye. See our best deep sky telescopes for top performers.
You are interested in astrophotography. Reflectors score 51 on average for astrophotography versus 32 for refractors. Newtonian reflectors on equatorial mounts (like the AstroMaster 130EQ-MD with its motor drive) offer a practical entry point into long-exposure imaging. For dedicated astrophotography options, see our astrophotography telescope guide.
You do not mind occasional collimation. Reflector mirrors shift during transport and temperature changes. Collimation (realigning the mirrors) takes 5-10 minutes with a basic tool once you learn the process. Most observers collimate every few sessions, not every night.
The tradeoff: Reflectors are heavier (12.7kg average), need cooldown time for the mirrors to reach ambient temperature, and the open tube collects dust over time.
What About Compound Telescopes?
There is a third option. Compound (catadioptric) telescopes combine lenses and mirrors in a sealed, compact tube. The two main types are Schmidt-Cassegrains (SCT) and Maksutov-Cassegrains (MAK).
Compounds offer the sealed tube of a refractor with aperture closer to a reflector, in a shorter package. The Celestron NexStar 8SE packs 203mm of aperture into a tube that is only about 430mm long. The catch: they cost more per millimeter of aperture than either reflectors or refractors, and their longer focal ratios make them less suited for wide-field viewing.
Compound telescopes score well in our database, with the top three averaging an overall score of 80. They are worth considering if you want a portable scope with serious aperture and are willing to pay a premium. For the full breakdown of all five telescope categories, see our types of telescopes guide.
Decision Flowchart
Use this to narrow down your choice:
1. What is your budget?
- Under $150: Refractor (best options at this price are refractors)
- $150-$500: Either design works; continue below
- $500+: All three designs are available; continue below
2. How important is portability?
- Very important (travel, balcony, backpacking): Refractor
- Somewhat important: Refractor or compound
- Not a priority (backyard, dark site trips by car): Reflector
3. What do you want to observe?
- Moon and planets primarily: Refractor or compound
- Deep sky objects (galaxies, nebulae): Reflector
- A mix of everything: Reflector (the extra aperture helps across the board)
4. How do you feel about maintenance?
- Zero maintenance, please: Refractor
- Willing to learn collimation: Reflector
Best Refractors in Our Database
1. Gskyer 70AZ
Gskyer
Gskyer 70AZA capable 70mm refractor that punches above its price for beginners ready to explore the night sky.
The Gskyer 70AZ leads our refractor rankings with an overall score of 81 and a value score of 95. At $97, it is one of the most accessible telescopes in our database. The 70mm aperture handles lunar craters, Jupiter's moons, and Saturn's rings, though do not expect to resolve faint deep sky targets. With over 22,600 Amazon reviews and a 4.3-star rating, this is a proven entry point. It weighs just 2.6kg (5.7 lbs), making it genuinely portable.
Who it is for: First-time buyers who want a functional telescope without committing to a large investment.
The tradeoff: 70mm of aperture limits deep sky capability. You will outgrow it if you get serious.
2. Celestron AstroMaster 102AZ
Celestron
Celestron AstroMaster 102AZA capable 102mm refractor that gets you outside and observing on your first night out
The Celestron AstroMaster 102AZ scores 74 overall and steps up to 102mm of aperture, the largest in our refractor top three. The achromat refractor design at f/6.5 provides a good balance of magnification and field of view. At $273, it is a meaningful upgrade over sub-$100 scopes, with 4,400+ Amazon reviews at 4.4 stars confirming its reputation. The 5.8kg (12.8 lbs) total weight remains manageable for backyard sessions.
Who it is for: Observers who want more aperture than a 70mm scope without jumping to a reflector.
The tradeoff: Achromat design shows some chromatic aberration (purple fringing) on bright objects at high magnification.
3. Celestron Travel Scope 80
Celestron
Celestron Travel Scope 80Portable 80mm refractor that goes where you go, without sacrificing the views that matter most
The Celestron Travel Scope 80 scores 70 overall with a value score of 91. It earns its name: at 2.0kg (4.5 lbs) and 400mm focal length, this scope was designed to travel. The 80mm aperture is a step up from 70mm models, gathering 31% more light. The included backpack makes it a natural choice for camping trips and vacations. At $108, it punches well above its price for casual observing.
Who it is for: Travelers and casual observers who want a real telescope they can pack anywhere.
The tradeoff: The lightweight tripod struggles in wind, and 80mm is still limited for deep sky.
Best Reflectors in Our Database
1. Celestron NexStar 130SLT
Celestron
Celestron NexStar 130SLT130mm GoTo reflector that finds 4,000+ objects automatically, built for beginners ready to explore beyond the Moon
The Celestron NexStar 130SLT tops our reflector rankings with an overall score of 85. The 130mm Newtonian on a computerized GoTo mount automatically locates over 4,000 objects, which changes the experience entirely for beginners. At $535, it costs more than manual alternatives, but the GoTo system means you spend time observing rather than searching. It scores 65 for deep sky and 56 for planetary, strong numbers for this price range. The 5.2kg (11.4 lbs) weight is light for a GoTo reflector.
Who it is for: Beginners who want automation to accelerate their learning, and intermediate observers who value convenience.
The tradeoff: Requires 8 AA batteries or an optional power supply. The alignment procedure takes a few minutes each session.
2. Celestron 114LCM
Celestron
Celestron 114LCMGoTo automation meets a capable 114mm Newtonian, making it easier to find your first thousand objects.
The Celestron 114LCM scores 82 overall and brings GoTo to a lower price point at $353. The 114mm Newtonian at f/8.8 provides a longer focal length (1000mm) than the 130SLT, which is an advantage for planetary detail. With a beginner score of 61 (tied with the 130SLT for best among reflectors), this telescope is designed to make the first months of observing as friction-free as possible. It carries a 4.1-star Amazon rating across 978 reviews.
Who it is for: Budget-conscious buyers who want GoTo functionality without spending over $400.
The tradeoff: 114mm gathers 30% less light than the 130SLT. You will notice the difference on faint deep sky targets.
3. Celestron AstroMaster 130EQ-MD
Celestron
Celestron AstroMaster 130EQ-MD130mm of light-gathering power with motorized tracking, built for beginners ready to go beyond the Moon
The Celestron AstroMaster 130EQ-MD scores 80 overall and takes a different approach: instead of GoTo, it pairs a 130mm Newtonian with an equatorial mount and motor drive for tracking. At $297, it is the most affordable 130mm reflector in our top three. The equatorial mount is harder to learn than alt-az, but it enables basic astrophotography by compensating for Earth's rotation. The astrophoto score of 68 is the highest among our featured reflectors.
Who it is for: Observers interested in learning equatorial tracking and trying basic astrophotography.
The tradeoff: Equatorial mounts have a steeper learning curve. At 7.7kg (17 lbs), it is less portable than the alt-az options.
Understanding Key Specs
If you are new to telescopes, here are the specs that matter most when comparing reflectors and refractors.
Aperture
Aperture is the diameter of the telescope's main mirror or lens, measured in millimeters. It determines how much light the telescope collects. More aperture means brighter images and the ability to resolve finer detail. A 130mm reflector collects 3.4 times more light than a 70mm refractor. This is the single most important spec for visual observing.
Focal Ratio (f/number)
The focal ratio is the focal length divided by the aperture. Lower numbers (f/4 to f/6) produce wider fields of view and brighter images at low magnification, well-suited for deep sky. Higher numbers (f/8 to f/12) provide narrower fields with more magnification, better for planets. Most beginner reflectors sit around f/5 to f/9; most beginner refractors range from f/5 to f/13.
Collimation
Collimation means aligning the mirrors in a reflector telescope for sharp images. Refractors never need this. Reflectors need it periodically, especially after transport. It sounds intimidating, but it takes 5-10 minutes with a $15 collimation tool, and countless YouTube tutorials walk through the process step by step.
Chromatic Aberration
Achromat refractors (the most common type at beginner prices) bend different wavelengths of light at slightly different angles, producing purple or blue fringing around bright objects like the Moon and Jupiter. Reflectors avoid this entirely because mirrors reflect all wavelengths equally. ED (extra-low dispersion) and apochromat refractors fix this problem, but they cost significantly more.
