Choosing the right imaging Newtonian with a coma corrector involves balancing aperture, optical quality, and setup complexity. The SkyWatcher S20204 Quattro stands out for dedicated astrophotography with its high-quality optics but requires separate adapters. The Sky-Watcher Quattro 300P offers a massive 12-inch aperture for detailed deep-sky imaging, yet its weight and size demand a sturdy mount. Meanwhile, the Sky-Watcher Quattro 200P provides a versatile 8-inch option that balances performance with accessibility, though it might need additional accessories for full-frame imaging. These selections highlight different priorities: high image quality, aperture size, and user-friendliness, with inherent tradeoffs in cost, weight, and compatibility.
Key Takeaways
- The SkyWatcher S20204 Quattro excels for astrophotographers using Quattro Newtonians, especially with Canon or Nikon adapters.
- The Quattro 300P offers the largest aperture for detailed deep-sky images but requires a robust mount and space.
- The Quattro 200P strikes a balance between aperture and portability, ideal for those wanting quality without excessive weight.
- Baader‘s MPCC is the most affordable option for wide-field imaging, with the benefit of full field correction and no magnification increase.
- All options have tradeoffs: size and weight for aperture, additional costs for adapters, and compatibility considerations.
| SkyWatcher S20204 Quattro Coma Corrector (Black) | ![]() | Best for dedicated astrophotography with Quattro Newtonians | Type: Coma Corrector | Model: S20204 | Color: Black | VIEW ON AMAZON | See Our Full Breakdown |
| Sky-Watcher Quattro 300P Imaging Newtonian 12-inch Reflector Telescope for Astrophotography | ![]() | Best for large aperture deep-sky imaging | Aperture: 12 inches | Focal Ratio: f/4 | Focal Length: 1000 mm | VIEW ON AMAZON | See Our Full Breakdown |
| Sky-Watcher Quattro 200P Imaging Newtonian – 8-inch Reflector for Astrophotography | ![]() | Best balance of aperture and portability | Aperture: 8 inches | Focal Ratio: f/4 | Max Focal Length: 800mm | VIEW ON AMAZON | See Our Full Breakdown |
| Sky-Watcher Quattro 150P Imaging Newtonian Telescope | ![]() | Best for entry-level astrophotography and visual use | Aperture: 150mm | Focal Length: 600mm | Focal Ratio: f/4 | VIEW ON AMAZON | See Our Full Breakdown |
| Baader 2″ Mark III MPCC Multi Purpose Coma Corrector – Photographic Version | ![]() | Best budget wide-field correction for astrophotography | Magnification Increase: None | Back-Focus: No additional back-focus required | Field Compatibility: Works with large 2″ eyepieces | VIEW ON AMAZON | See Our Full Breakdown |
| imaging newtonian with coma corrector included | Aperture | Focal Ratio | Focuser | Included Accessories |
|---|---|---|---|---|
| SkyWatcher S20204 Quattro Coma | — | — | — | — |
| Sky-Watcher Quattro 300P Imagi | 12 inches | f/4 | 2-inch dual-speed Crayford-style | Tube rings, Vixen-style dovetail, 8×50 finderscope |
| Sky-Watcher Quattro 200P Imagi | 8 inches | f/4 | 2-inch dual-speed Crayford | Tube rings, dovetail, finderscope |
| Sky-Watcher Quattro 150P Imagi | 150mm | f/4 | 11:1 dual-speed, 2-inch | 70° ultra-wide 22mm eyepiece, finderscope |
| Baader 2" Mark III MPCC Multi | — | — | — | — |
More Details on Our Top Picks
SkyWatcher S20204 Quattro Coma Corrector (Black)
This coma corrector is tailored for astrophotographers working with Quattro Newtonians, featuring high-quality FPL51 and Schott glass elements that produce sharp, coma-free images. Compared with the Baader MPCC, this device offers better optical correction specifically for f/4 ED optics but requires separate adapters for Canon or Nikon cameras, adding to setup complexity. Its primary advantage is its optimized design for specific telescope models, making it less flexible for other systems. The need for additional adapters can be a hassle, but the optical quality justifies it for serious astrophotographers seeking crisp images.
Pros:- Optimized for Quattro Newtonians, producing sharp, coma-free images
- High-quality FPL51 and Schott glass elements ensure optical clarity
- Compatible with popular camera adapters (sold separately)
- Designed specifically for astrophotography needs
Cons:- Requires purchasing adapters separately, increasing overall cost
- Limited compatibility outside specific telescope models
- Set-up may be complex for newcomers
Best for: Astrophotographers with Quattro Newtonians using Canon or Nikon cameras
Not ideal for: Beginners or those using non-Quattro Newtonians without adapters
- Type:Coma Corrector
- Model:S20204
- Color:Black
- Optics:f/4 ED
- Glass:FPL51 and Schott
- Compatibility:Newtonians, Canon and Nikon adapters (sold separately)
Our verdict“Optimum for dedicated astrophotographers with Quattro Newtonians willing to invest in quality and adapters.”
Sky-Watcher Quattro 300P Imaging Newtonian 12-inch Reflector Telescope for Astrophotography
The Quattro 300P provides a substantial 12-inch aperture that captures incredible detail in deep-sky objects. Its f/4 optics allow for shorter exposure times, making it ideal for high-quality astrophotography. The included accessories, such as tube rings and a dual-speed focuser, streamline the setup process. However, its size and weight demand a sturdy mount and ample space, which may limit portability. Compared with smaller models, this telescope delivers more light-gathering power but at the cost of increased complexity and physical demands, making it best suited for seasoned astrophotographers with dedicated setups.
Pros:- Massive 12-inch aperture for detailed imaging
- Fast f/4 optics reduce exposure times
- Includes comprehensive accessories for immediate use
- Oversized secondary mirror for full-frame sensor illumination
Cons:- Heavy and bulky, requiring a strong mount and dedicated space
- Primarily designed for astrophotography, less suitable for casual observing
- Setup complexity may be daunting for beginners
Best for: Experienced astrophotographers needing high detail and large aperture
Not ideal for: Casual users or those with limited setup space and transport options
- Aperture:12 inches
- Focal Ratio:f/4
- Focal Length:1000 mm
- Secondary Mirror:Oversized
- Focuser:2-inch dual-speed Crayford-style
- Included Accessories:Tube rings, Vixen-style dovetail, 8×50 finderscope
Our verdict“A powerhouse choice for serious astrophotographers with space and mount capacity for large setups.”
Sky-Watcher Quattro 200P Imaging Newtonian – 8-inch Reflector for Astrophotography
The 8-inch Quattro 200P offers a versatile focal ratio of f/4, making it suitable for capturing detailed deep-sky images without overwhelming weight. Its included accessories, like the dual-speed focuser and oversized secondary, support precise imaging. While it provides impressive performance for its size, it may need supplementary accessories, including a coma corrector, to optimize full-frame astrophotography. Compared to the 300P, it’s more manageable in size and transport but slightly less powerful in light-gathering. It fits well for serious amateurs upgrading their gear with a balanced approach.
Pros:- Fast f/4 focal ratio enables shorter exposures
- Includes essential accessories
- Oversized secondary mirror for full-frame cameras
- More manageable size than larger models
Cons:- May require additional accessories like a coma corrector
- Still relatively heavy and large for portable use
- Primarily designed for astrophotography, not casual visual use
Best for: Intermediate astrophotographers seeking a manageable yet capable system
Not ideal for: Complete beginners or those needing a lightweight, portable setup
- Aperture:8 inches
- Focal Ratio:f/4
- Max Focal Length:800mm
- Focuser:2-inch dual-speed Crayford
- Secondary Mirror:Oversized
- Included Accessories:Tube rings, dovetail, finderscope
Our verdict“A well-rounded choice for dedicated amateurs wanting substantial aperture without excessive size.”
Sky-Watcher Quattro 150P Imaging Newtonian Telescope
The 6-inch Quattro 150P offers a solid starting point for astrophotography, especially for those looking to learn the craft without a huge investment. Its f/4 optics provide quick exposure times, and the high-reflectivity coatings maximize light transmission. The included accessories, such as a dual-speed focuser and a coma corrector, make it easier to achieve sharp images. However, its size and weight can be a drawback for portability, and it’s primarily suited for astrophotography, making it less than ideal for purely visual observing. It’s a good entry-level system that can grow with the user’s skills.
Pros:- Large 6-inch aperture for bright, detailed images
- Fast f/4 optics for quick exposures
- Includes essential accessories
- Good entry point for learning astrophotography
Cons:- Heavy for its size, less portable
- Designed mainly for astrophotography, limited visual use
- Additional accessories may be needed for optimal results
Best for: Beginners or hobbyists seeking a capable, affordable astrophotography setup
Not ideal for: Advanced users requiring larger apertures or portable systems
- Aperture:150mm
- Focal Length:600mm
- Focal Ratio:f/4
- Coatings:Radiant Aluminum Quartz
- Focuser:11:1 dual-speed, 2-inch
- Included Accessories:70° ultra-wide 22mm eyepiece, finderscope
Our verdict“An excellent starter for new astrophotographers ready to step into deeper imaging with a moderate size system.”
Baader 2″ Mark III MPCC Multi Purpose Coma Corrector – Photographic Version
The Baader MPCC offers full field correction for wide-field astrophotography at an attractive price point. It’s designed to work with 2″ eyepieces and requires no additional back-focus, simplifying setup. Compared with dedicated Newtonian coma correctors, it provides consistent correction without magnification change, preserving the scale of your images. It’s particularly appealing for users seeking a cost-effective solution for wide-field imaging, although some may find its optical specifications less tailored for high-precision, narrow-field work. Its affordability makes it a popular choice for hobbyists expanding their imaging toolkit.
Pros:- Full field correction for wide-field astrophotography
- No magnification increase, maintaining image scale
- Minimal vignetting with large 2″ eyepieces
- Affordable option for wide-field imaging
Cons:- Setup can be complex for some users
- Less tailored for narrow-field, high-magnification work
- Limited specific optical specs compared to premium correctors
Best for: Budget-conscious astrophotographers focusing on wide-field imaging
Not ideal for: High-magnification astrophotography or users needing specific telescope compatibility
- Magnification Increase:None
- Back-Focus:No additional back-focus required
- Field Compatibility:Works with large 2″ eyepieces
- Vignetting:Reduced vignetting
- Cost:About half the cost of other correctors
Our verdict“An affordable and effective choice for wide-field astrophotographers on a budget.”

How We Picked
Our selection process focused on products explicitly designed for astrophotography with integrated coma correction, emphasizing optical quality, ease of integration, and value. We looked at aperture size, optical elements, and compatibility with popular cameras. We compared features such as back-focus requirements, included accessories, and overall build quality. Products were chosen to represent a range of budgets and user needs, from dedicated high-end systems to more affordable, versatile options. Tradeoffs like weight, complexity, and cost were key factors in shaping this lineup, ensuring that each pick serves a specific type of astrophotographer.
Factors to Consider When Choosing Imaging Newtonian With Coma Corrector Included
Choosing the right imaging Newtonian with a coma corrector involves assessing your specific needs—whether you prioritize aperture, optical quality, or budget. The key is to match your telescope size and intended imaging targets with the corrector’s compatibility and features. Understanding the tradeoffs between size, weight, and optical performance helps ensure you select a system that enhances your astrophotography experience without overwhelming your setup or budget.Aperture and Optical Quality
The size of your telescope’s aperture directly affects your ability to capture faint deep-sky objects. Larger apertures, like the 12-inch Quattro 300P, deliver more detail but require sturdy mounts and space. Smaller options, such as the 6-inch Quattro 150P, are more manageable but still provide excellent imaging capabilities. Optical quality, including glass types and coatings, influences image sharpness and contrast, especially important when removing coma with a corrector.
Compatibility and Setup
Ensure your chosen coma corrector is compatible with your telescope’s backfocus and camera system. Some correctors, like the Baader MPCC, are versatile and easier to set up, while more specialized units, such as the SkyWatcher Quattro S20204, require specific adapters. Consider whether you need a system optimized for wide-field or deep-sky imaging, and check if the included accessories support your workflow.
Size, Weight, and Portability
The physical size of your telescope and corrector impacts transport, mounting, and overall ease of use. Larger systems like the Quattro 300P demand robust mounts and ample space, making them less suitable for portable setups. Conversely, smaller or mid-sized options like the Quattro 200P balance performance with manageability, ideal for those with limited space or who travel to dark skies.
Budget and Additional Costs
Price varies significantly across options, with dedicated correctors like the SkyWatcher S20204 costing more due to high-quality optics, while affordable options like the Baader MPCC provide decent correction at a fraction of the price. Remember to factor in additional expenses such as adapters, mounts, and accessories, which can influence your total investment.
Frequently Asked Questions
Can I use a coma corrector with any Newtonian telescope?
Not all Newtonian telescopes are compatible with coma correctors. Most dedicated correctors are designed for specific optical configurations and backfocus requirements. Before purchasing, verify that your telescope’s backfocus and optical design match the corrector’s specifications. For example, the SkyWatcher S20204 is optimized for Quattro Newtonians, while others like the Baader MPCC are more versatile for different setups.
Is a coma corrector necessary for astrophotography?
For high-quality astrophotography, especially with fast f/4 optics, a coma corrector is highly recommended to remove optical aberrations caused by the paraboloidal mirrors. Without it, images tend to display coma, which reduces sharpness and detail, particularly at the edges. For visual observing, a coma corrector is less critical but can still improve image quality in some cases.
How does aperture size affect my choice of coma corrector?
Larger apertures gather more light and reveal finer detail, but they also require more precise correction to maintain image quality. Correctors like the SkyWatcher S20204 are tailored for high-performance systems with large apertures, while smaller telescopes like the Quattro 150P may need less correction or simpler setups. Matching the corrector’s capabilities to your telescope’s aperture ensures optimal results.
Are affordable coma correctors reliable for serious imaging?
Budget options like the Baader MPCC can deliver satisfactory correction for wide-field astrophotography, especially for amateurs or those starting out. However, they might lack the optical perfection or compatibility features found in more expensive units. For critical or high-magnification imaging, investing in a higher-quality corrector may provide noticeably better results, but the MPCC remains a solid choice for entry-level or wide-field work.
What are the main tradeoffs between different coma correctors?
Cheaper correctors tend to offer simpler designs and lower optical quality, which can result in residual coma or vignetting. More expensive units provide superior correction and wider field compatibility but come at higher costs and complexity. Compatibility with your specific telescope and camera system is also a key consideration. Balancing your budget with the desired optical performance helps determine the best choice.
Conclusion
For those primarily focused on deep-sky astrophotography with dedicated Newtonians, the SkyWatcher Quattro 300P offers unmatched aperture and image detail, provided you have the space and mount capacity. Intermediate users or those who prefer a balance between performance and portability will find the Quattro 200P a compelling choice. Beginners or hobbyists on a budget will appreciate the versatility and affordability of the Baader MPCC, especially for wide-field imaging. Each option offers specific advantages and tradeoffs, so select based on your experience level, setup constraints, and imaging goals.




