If you’re exploring options for an askar apochromatic refractor, you’re likely seeking a high-quality instrument that combines sharp, color-free images with versatility for astrophotography or visual observation. The Askar 50P stands out as the best overall choice for its compact size and impressive image quality, while the Askar FMA180pro appeals to those needing a versatile, high-performance quadruplet design. Meanwhile, the Askar 103APO offers a larger aperture for detailed planetary and deep-sky work. The main tradeoffs in this category often involve balancing aperture, optical complexity, and price—more advanced designs typically deliver better images but come at a higher cost. Continue reading for a detailed breakdown of each model and which might suit your specific needs.
Key Takeaways
- The top picks are distinguished by their optical design complexity, with quadruplet and quintuplet systems offering superior color correction.
- Larger apertures generally provide more detailed images but also increase weight, cost, and setup complexity.
- Versatility varies: some models excel in astrophotography, while others are better suited for visual observation or a mix of both.
- Build quality and mounting compatibility are critical, especially for heavier or more precise refractors.
- Price differences reflect optical complexity, aperture, and included accessories—higher costs usually mean better performance but not always the best fit for beginners.
| askar apochromatic refractor | Focal Length | Aperture | Focal Ratio | Optical Design |
|---|---|---|---|---|
| Askar 50P Telescope,50mm Apert | 190mm | 50mm | f/3.8 | Quadruplet Petzval APO |
| Askar 103APO 103mm Aperture F6 | 700mm | 103mm | f/6.8 | Triplet ED |
| Askar 80ED Refractor Telescope | 560mm | 80mm | f/7 | — |
| Askar FMA180pro OTA Telescope, | 180mm | 180mm | f/4.5 | Sextuplet Air-Spaced APO |
| Askar 60F Flat-Field Telescope | 408mm | 60mm | f/6.8 | Quadruplet ED |
| Askar FRA400 Astrograph Refrac | 400 millimeters | — | — | — |
More Details on Our Top Picks
Askar 50P Telescope,50mm Aperture F3.8 SD Glass Refractor OTA, Versatile Quadruplet APO Astrograph, 160mm Vixen Dovetail Plate for Deep Sky Astrophotography and Visual Astronomy
The Askar 50P stands out for its compact size and high-quality optics, featuring a quadruplet Petzval APO design that offers excellent color correction and sharpness. Compared with the larger Askar FMA180pro, it sacrifices some aperture and focal length but excels in portability and ease of setup, making it perfect for travel or secondary imaging rigs. Its self-flattened design removes the need for additional correctors, simplifying astrophotography workflows. While its small aperture limits deep-sky imaging compared to larger scopes, it provides impressive visual clarity and flat-field imaging for its size. The lightweight construction and integrated finder bases add practical convenience, though it might require a dedicated camera or mount for optimal performance. Overall, this scope makes a compelling choice for astrophotographers needing a versatile, portable APO with minimal fuss.
Pros:- Compact, lightweight, and highly portable
- High-quality quadruplet APO optics for sharp, color-corrected images
- Self-flattened design simplifies flatfield astrophotography
Cons:- Limited aperture restricts deep-sky imaging capabilities
- No integrated tracking or motorized features, requiring external mounts
Best for: Beginners and experienced astrophotographers who prioritize portability without sacrificing optical quality
Not ideal for: Deep-sky imagers seeking large apertures for faint objects or those wishing for motorized focus and tracking
- Aperture:50mm
- Focal Length:190mm
- Focal Ratio:f/3.8
- Optical Design:Quadruplet Petzval APO
- Sensor Compatibility:Supports APS-C, 1-inch sensors
- Dovetail Plate:Vixen
Our verdict“This scope is ideal for astrophotographers who need a high-performance, portable APO for both visual and imaging work without complex accessories.”
Askar 103APO 103mm Aperture F6.8 700mm Focal Length ED Glass Telescope OTA Astrograph for Astrophotography and Viewing
The Askar 103APO delivers a substantial step up in aperture and focal length, making it suitable for both detailed planetary viewing and deep-sky astrophotography. Its ED glass triplet ensures crisp images with minimal chromatic aberration, rivaling larger, more expensive APOs like the FMA180pro. Unlike the FMA180pro, it lacks internal focusing and comes with a manual focus system, which may slow down high-precision focusing but keeps the overall weight manageable. The included equatorial mount provides straightforward tracking, though it does not feature motorized control, limiting its automation. The narrower field of view (1.9 degrees) suits targeted deep-sky objects better than wide-area sky surveys. This telescope balances optical quality and portability, though it requires a sturdy mount and some patience for fine focusing.
Pros:- Excellent ED triplet glass for sharp, chromatic aberration-free images
- Compact and lightweight for its aperture size
- Includes a suitable equatorial mount for tracking
Cons:- Manual focus can be less convenient for quick adjustments
- Lack of motorized tracking limits automation
Best for: Amateur astronomers seeking a mid-range APO for detailed observation and astrophotography without excessive size or complexity
Not ideal for: Those desiring fully automated imaging setups or wide-field astrophotography due to its manual focus and narrower field of view
- Aperture:103mm
- Focal Length:700mm
- Focal Ratio:f/6.8
- Optical Design:Triplet ED
- Mount Type:Equatorial
- Field of View:1.9°
Our verdict“This telescope offers a balanced blend of optical quality and portability for dedicated amateurs willing to focus manually.”
Askar 80ED Refractor Telescope, 80mm F7, 560mm, Dual-Speed Focuser, ED Glass Astrograph for Astrophotography and Observation
The Askar 80ED strikes a balance between aperture and optical precision, featuring high-quality ED glass and a dual-speed focuser that facilitates fine adjustments—crucial for astrophotography. Compared with the smaller 60F, it offers more light-gathering power and a longer focal length, making it better suited for detailed planetary and lunar views, as well as deep-sky targets. Its dual finder bases provide flexible mounting options, and the compatible accessories like reducers expand its versatility. However, the scope’s weight and size mean it’s not as portable as smaller refractors, and the need for a compatible mount can add to the setup complexity. The additional accessories sold separately might be necessary to maximize its potential, which adds to overall cost.
Pros:- High-quality ED glass for sharp, detailed images
- Dual-speed focuser for precise focusing
- Flexible mounting options with dual finder bases
Cons:- Additional accessories are sold separately
- Relatively heavy and less portable
Best for: Intermediate astronomers wanting a versatile scope for both planetary observation and astrophotography with precise focusing capabilities
Not ideal for: Beginners seeking a lightweight, all-in-one starter scope or those prioritizing portability over optical quality
- Aperture:80mm
- Focal Length:560mm
- Focal Ratio:f/7
- Focuser:Dual-speed rack-and-pinion
- Finderscope Mounts:Dual bases
- Included Accessories:Optional reducers and flattener
Our verdict“This refractor suits dedicated amateurs who want a capable, dual-purpose scope for detailed observation and imaging, accepting some added weight and complexity.”
Askar FMA180pro OTA Telescope,F/4.5,180mm Focal Length,Two-ED Glasses sextuplet air-Spaced APO Refractor for Deep Sky Astrophotography and Visual Astronomy
The Askar FMA180pro stands out for its sextuplet air-spaced APO design, offering exceptional chromatic correction and image clarity, making it a top choice for serious astrophotographers. Its fast f/4.5 focal ratio allows for shorter exposure times and wider fields of view, especially useful for deep-sky objects. The internal focusing mechanism enhances stability and precision, surpassing simpler focuser designs. Compared to smaller APOs like the 50P, the FMA180pro’s larger aperture unlocks more detail and light gathering power, though it comes with increased weight and complexity. Its compact size for a scope of this capacity makes it suitable for mobile setups, but it demands a sturdy mount and careful handling. This model is best for enthusiasts demanding high optical performance in a manageable package.
Pros:- Exceptional sextuplet design for minimal chromatic aberration
- Fast f/4.5 focal ratio for shorter exposures
- Compact and portable for its aperture size
Cons:- Heavier and more complex than smaller APOs
- Requires a robust mount for optimal stability
Best for: Advanced astrophotographers seeking a high-performance, portable astrograph for deep-sky imaging
Not ideal for: Beginners or casual hobbyists who prefer simpler, more affordable scopes or do not require fast focal ratios
- Aperture:180mm
- Focal Length:180mm
- Focal Ratio:f/4.5
- Optical Design:Sextuplet Air-Spaced APO
- Focuser:Internal focusing
- Additional Features:360° rotator, finder base
Our verdict“This astrograph offers high optical quality and portability for advanced users focused on deep-sky astrophotography, accepting increased weight and setup complexity.”
Askar 60F Flat-Field Telescope, 60mm Aperture F6.8 ED Glass Refractor OTA for Astrophotography and Visual Astronomy
The Askar 60F emphasizes portability and flat-field correction, making it appealing for travel-focused astrophotographers. Its quadruplet ED glass lens effectively minimizes chromatic aberration, similar to the 50P, but with a slightly wider aperture and longer focal length for more versatile imaging. The built-in field flattener significantly simplifies setup for full-frame astrophotography, a feature not present in smaller scopes like the 50P. While its 60mm aperture limits deep-sky imaging of faint objects, it excels at wide-field views of brighter targets, lunar, and planetary imaging. Its lightweight build and compatibility with various cameras make it ideal for on-the-go use, but it requires additional accessories like adapters for full functionality. This scope is best suited for enthusiasts who prioritize travel and wide-field imaging.
Pros:- Built-in field flattener simplifies astrophotography setup
- High-quality quadruplet ED glass for minimal chromatic aberration
- Lightweight and highly portable for travel
Cons:- Limited aperture size restricts deep-sky imaging
- Requires additional accessories for full imaging setup
Best for: Travelers and astrophotography hobbyists seeking a portable, flat-field scope for bright objects and wide-field imaging
Not ideal for: Deep-sky imagers targeting faint galaxies or nebulae due to its small aperture and limited light-gathering capacity
- Aperture:60mm
- Focal Length:408mm
- Focal Ratio:f/6.8
- Optical Design:Quadruplet ED
- Built-in Field Flattener:Yes
- Compatibility:Full-frame, DSLR
Our verdict“This scope is perfect for astrophotographers who need a lightweight, flat-field system for bright objects and travel, accepting limitations in faint deep-sky imaging.”
Askar FRA400 Astrograph Refractor, 400mm F/5.6, Quintuplet Design for Deep Sky Astrophotography and Visual Astronomy
The Askar FRA400 stands out for its specialized design tailored to deep sky astrophotography, especially compared to the more general-purpose Askar 80ED. Its 400mm focal length coupled with F/5.6 aperture delivers a wide field of view ideal for capturing expansive nebulae and galaxies, making it a go-to for dedicated astrophotographers. The quintuplet optical setup promises superior correction of chromatic aberration, particularly when paired with high-quality cameras, which is a distinct advantage over simpler doublet designs. However, the manual focus can challenge users seeking quick or effortless adjustments, and its weight and bulkiness make it less suitable for portable setups. The inclusion of a high-precision reducer with a 360-degree rotator and patented tube rings adds versatility, allowing precise framing and easier mounting, but the complexity may intimidate beginners. Compared with similar astrographs like the Askar 50P, the FRA400 offers a broader field and more advanced features, yet at the cost of increased size and handling difficulty. Overall, this model is best suited to experienced astrophotographers who prioritize optical quality and flexibility over portability.
Pros:- Exceptional optical correction thanks to quintuplet design, reducing chromatic aberration for sharp images
- Versatile with multiple attachments, including a high-precision reducer and rotator for flexible framing
- Suitable for both imaging and visual astronomy, offering broad field of view
Cons:- Manual focus requires careful, precise adjustments, which can be challenging during imaging sessions
- Heavy and bulky design limits portability and field use
- Limited information on warranty, support, and ease of setup for less experienced users
Best for: Advanced amateur astrophotographers focused on deep sky imaging who require a versatile, high-quality astrograph with extensive attachment options.
Not ideal for: Beginners or casual observers seeking a lightweight, easy-to-use telescope for quick setup and portability.
- Mount:Equatorial
- Focus Type:Manual
- Compatible Devices:Camera, Smartphone, Mount
- Focal Length:400 millimeters
- Field Of View:5.56 Degrees
- Additional Features:Quintuplet Astrograph Design, Retractable Dew Shield, High-Precision Reducer with 360-Degree Rotator, Patented Tube Rings with Multifunctional Attachments
Our verdict“This astrograph excels for seasoned astrophotographers needing a high-performance instrument that balances optical excellence with adaptable imaging capabilities, but it’s less suited for those prioritizing portability or beginner-friendly features.”
How We Picked
Our evaluation focused on optical performance, build quality, versatility, and value for money. We prioritized models with advanced optical designs—such as quadruplet and quintuplet systems—that minimize chromatic aberration and deliver crisp, color-free images. Ease of use and compatibility with common mounts were also key factors, especially for those intending to use these refractors for astrophotography. We excluded models that lacked proven optical performance or had significant tradeoffs in size or weight. The ranking reflects a balance between optical excellence, affordability, and broad usability for different types of astronomers.
| askar apochromatic refractor | Focal Ratio | Optical Design |
|---|---|---|
| Askar 50P Telescope,50mm Apert | f/3.8 | Quadruplet Petzval APO |
| Askar 103APO 103mm Aperture F6 | f/6.8 | Triplet ED |
| Askar 80ED Refractor Telescope | f/7 | — |
| Askar FMA180pro OTA Telescope, | f/4.5 | Sextuplet Air-Spaced APO |
| Askar 60F Flat-Field Telescope | f/6.8 | Quadruplet ED |
| Askar FRA400 Astrograph Refrac | — | — |
Factors to Consider When Choosing Askar Apochromatic Refractor
Choosing the right askar apochromatic refractor involves understanding several key factors that influence performance and usability. Beyond optical quality, considerations such as aperture size, optical design, mount compatibility, and intended use are vital. Making informed choices helps avoid common pitfalls, like underestimating weight or overpaying for features you don’t need. This guide offers insights into what matters most when selecting an APO refractor for your specific astronomy goals.
Optical Design and Aperture
The optical design—whether triplet, quadruplet, or quintuplet—directly impacts image quality, especially in terms of chromatic aberration correction. Larger apertures gather more light and reveal finer details, but they also increase weight and cost. For astrophotography, a well-corrected optical system is essential, but for visual use, a more compact design might suffice. Consider your primary use and balance aperture size with portability and budget.
Build Quality and Mount Compatibility
High-quality construction ensures durability and stable performance during long sessions. Look for precision-machined components and robust mounting plates like Vixen or Arca-Swiss. If you plan to do astrophotography, compatibility with a sturdy mount is crucial to prevent vibrations that can blur images. Remember, a heavier refractor might require a more powerful mount, which adds to the overall investment.
Intended Use: Visual, Photographic, or Both
Some models are optimized for astrophotography, offering features like precise focuser mechanisms and flat-field correction. Others excel at visual observation due to their lightweight design and ease of handling. If you want a multipurpose instrument, look for a model that balances both capabilities. Over-investing in an ultra-advanced astrograph might be unnecessary if your primary goal is casual viewing.
Price and Value
Higher prices generally correlate with better optical correction and build quality, but that doesn’t mean budget models lack value. Evaluate what features are critical for your needs—sometimes a less expensive model with good optical correction is a smarter purchase. Beware of overpaying for features that won’t benefit your specific use case or that you won’t utilize regularly.
Portability and Setup
Portability influences how often you’ll use your refractor. Compact models like the Askar 50P are easy to transport and quick to set up, ideal for travel or quick sessions. Larger, more complex designs may require more effort but provide better optical performance. Consider your typical observing environment and how much setup time you’re willing to invest.
Frequently Asked Questions
Is a quadruplet apochromatic refractor worth the higher cost?
Quadruplet apochromatic refractors typically deliver superior chromatic aberration correction compared to triplet designs, resulting in sharper, more color-free images. This makes them especially valuable for astrophotography or high-precision visual work. However, they come at a higher price and often are larger and heavier. If your budget allows and your focus is on detailed, high-contrast images, investing in a quadruplet can be justified; otherwise, a well-designed triplet may suffice for casual use.
Can I use an askar apochromatic refractor for planetary observation?
Yes, many askar apochromatic refractors are excellent for planetary viewing due to their high contrast and minimal chromatic aberration. Larger apertures, like the Askar 103APO, can reveal fine details on planets, while smaller models like the 50P offer good portability with decent planetary views. Keep in mind that a sturdy mount and high-quality eyepieces further enhance planetary detail, regardless of the refractor size.
What should I prioritize—aperture or optical design—when choosing an askar APO?
It depends on your main use. For astrophotography, optical design—such as quadruplet or quintuplet—often takes precedence because it minimizes chromatic aberration and improves image quality. For visual observation, aperture can be more critical since it determines the brightness and resolution of planetary and deep-sky objects. Striking a balance between the two based on your typical observing sessions can help you avoid overinvesting in one aspect at the expense of the other.
Are flat-field models necessary for astrophotography?
Flat-field correction is essential for astrophotography to eliminate vignetting and field curvature, resulting in uniformly sharp images across the entire frame. Models like the Askar 60F are designed specifically with flat-field optics, making them preferable for wide-field astrophotography. If you plan to capture large star fields or deep-sky objects, choosing a flat-field APO refractor can significantly reduce post-processing time and improve image quality.
How much should I expect to spend on a quality askar apochromatic refractor?
Prices can vary widely, typically from around $1,000 for smaller, less complex models to over $4,000 or more for advanced quadruplet or quintuplet designs. Your budget should reflect your intended use and desired performance. Investing in a higher-quality optical system often pays off with better images and durability, but for casual observing or beginner photography, a mid-range model can offer excellent value without breaking the bank.
Conclusion
For those seeking the best overall performance with a balance of size and optical quality, the Askar 103APO stands out as a versatile choice. Beginners or those on a tighter budget will find the Askar 50P offers impressive capabilities in a compact form. If you prioritize premium image correction for astrophotography, the Askar FMA180pro provides a high-end solution. Lastly, for deep-sky enthusiasts requiring large apertures, the Askar FRA400 offers a compelling option. Tailor your choice to your primary observing or imaging goals, balancing performance, portability, and cost accordingly.
