What Makes Celestron AstroMaster 70 AZ Altazimuth Refractor Stand Out?
The Celestron AstroMaster 70 AZ Altazimuth Refractor is marketed as an entry-level telescope perfect for both terrestrial and celestial observation. Celestron, a well-known name in the astronomy world, aims to provide a user-friendly experience with this model, emphasizing quick setup and ease of use. Its dual-purpose design suggests a versatility that many beginner telescopes lack, promising views of both earthly landscapes and the night sky.
My journey to find the Celestron AstroMaster 70 AZ Altazimuth Refractor stemmed from a desire to share the wonders of the universe with my children. I wanted a telescope that was easy to set up, simple to use, and offered a decent view without breaking the bank – something that could spark their curiosity without overwhelming them. The promise of both astronomical and terrestrial viewing was also a major draw.
Unboxing the AstroMaster 70 AZ, I was immediately struck by how lightweight everything was. The materials felt relatively sturdy for the price point, though clearly not top-of-the-line. The pre-assembled tripod was a definite plus, and the overall design seemed intuitive enough even for a complete novice to assemble.
Compared to other telescopes in this price range, such as the Orion StarBlast II 4.5 EQ Reflector or the Meade Infinity 70mm Refractor, the Celestron AstroMaster 70 AZ Altazimuth Refractor seemed to offer a more straightforward setup and a less intimidating mount. The altazimuth mount appealed to me as easier to learn than an equatorial mount for a beginner. I chose it hoping for a quicker path to stargazing fun with my kids.
My first impression was cautiously optimistic. While the materials didn’t scream “high-end,” the ease of assembly and the dual-purpose nature of the telescope held promise. I was excited to see if it could deliver on its claims of providing clear views of both the Earth and the heavens.
Real-World Testing: Putting Celestron AstroMaster 70 AZ Altazimuth Refractor to the Test
First Use Experience
I tested the Celestron AstroMaster 70 AZ Altazimuth Refractor in my backyard, which, unfortunately, suffers from a fair amount of light pollution. The weather was clear and cool, ideal for stargazing. I initially focused on terrestrial objects during the day – distant trees, birds, and even the details on a nearby water tower.
The telescope performed reasonably well in these conditions, providing clear, upright images thanks to its erect image optics. However, the mount felt a bit shaky, making fine adjustments challenging, especially at higher magnifications. It took some getting used to, but I managed to stabilize it enough to get a decent view.
The biggest surprise came when I turned my attention to the night sky. While I was able to see the Moon clearly (albeit with some chromatic aberration), finding other celestial objects proved difficult due to the light pollution and the telescope’s relatively small aperture. The StarPointer finderscope, while a nice addition, felt cheap and required some fiddling to align accurately.
Extended Use & Reliability
After several weeks of use, the Celestron AstroMaster 70 AZ Altazimuth Refractor has held up surprisingly well considering its price. There are no signs of significant wear and tear, although the plastic components of the mount and finderscope are starting to show some minor scratches. The steel tripod remains sturdy, but I’m careful not to overtighten any of the fasteners.
Maintenance is straightforward. I simply wipe down the lens with a microfiber cloth after each use and store the telescope in its original box to protect it from dust and moisture. The instructions recommend occasional lubrication of the mount, which I plan to do soon.
Compared to my previous experiences with more expensive telescopes, the Celestron AstroMaster 70 AZ Altazimuth Refractor obviously doesn’t offer the same level of optical performance or build quality. However, for a beginner telescope at this price point, it’s adequate. Its ease of use and dual-purpose functionality are definite advantages, even if its performance is limited by its aperture and mount stability.
Breaking Down the Features of Celestron AstroMaster 70 AZ Altazimuth Refractor
Specifications
- Aperture: 70mm (2.76 inches). This determines the light-gathering ability, affecting the brightness and detail of observed objects.
- Focal Length: 900mm (35.43 inches). This, along with the aperture, determines the telescope’s magnification capabilities.
- Focal Ratio: f/12.86. A higher focal ratio indicates a narrower field of view and is better suited for observing bright objects like the Moon and planets.
- Mount Type: Altazimuth. This simple mount allows movement up/down (altitude) and left/right (azimuth), making it easy to point the telescope.
- Eyepieces: 20mm (45x) and 10mm (90x). These interchangeable eyepieces provide different levels of magnification.
- Finderscope: Permanently mounted StarPointer. This helps to locate objects before viewing them through the main telescope.
- Optical Coatings: Fully coated glass optics. These coatings improve light transmission and image brightness.
- Tripod: Pre-assembled with 1.25″ steel legs. The tripod provides a stable base for the telescope.
- Accessory Tray: Provides convenient storage for eyepieces and other accessories.
- Software: TheSkyX – First Light Edition astronomy software. This software includes a 10,000 object database, printable sky maps, and 75 enhanced images.
These specifications are important because they dictate the telescope’s capabilities and limitations. The 70mm aperture limits the amount of light it can gather, making it less suitable for observing faint deep-sky objects. The altazimuth mount, while easy to use, lacks the precision of an equatorial mount for tracking objects as the Earth rotates.
Performance & Functionality
The Celestron AstroMaster 70 AZ Altazimuth Refractor performs reasonably well as an entry-level telescope for both terrestrial and celestial viewing. It provides clear, upright images of land-based objects during the day and decent views of the Moon and planets at night. However, its small aperture and shaky mount limit its overall performance.
Its strengths lie in its ease of use and dual-purpose functionality. It’s quick to set up and easy to point at objects, making it a good choice for beginners and children. The erect image optics are a significant advantage for terrestrial viewing, as they eliminate the need for a diagonal mirror that would invert the image.
The weaknesses include its small aperture, which limits its light-gathering ability, and its shaky mount, which makes fine adjustments difficult. The StarPointer finderscope also feels cheap and can be difficult to align accurately. It struggles with objects beyond the Moon and brighter planets.
It meets expectations for an entry-level telescope in this price range, but it doesn’t exceed them. It’s a good starting point for exploring astronomy, but serious stargazers will eventually want to upgrade to a larger aperture telescope with a more stable mount.
Design & Ergonomics
The Celestron AstroMaster 70 AZ Altazimuth Refractor features a simple and functional design. The materials used are mostly plastic and aluminum, which keeps the weight down but also compromises its durability. The telescope is lightweight and easy to transport.
The build quality is adequate for the price, but it’s not exceptional. The plastic components of the mount and finderscope feel cheap and could be more robust. The steel tripod is sturdy enough, but it can be prone to vibration, especially in windy conditions.
The telescope is user-friendly and has a minimal learning curve. The altazimuth mount is intuitive to use, and the erect image optics make it easy to view terrestrial objects. However, the shaky mount and the difficult-to-align StarPointer finderscope can be frustrating for beginners.
Durability & Maintenance
The Celestron AstroMaster 70 AZ Altazimuth Refractor is not designed for heavy use or harsh conditions. Its plastic components are likely to break if subjected to rough handling. However, with proper care and storage, it should last for several years.
Maintenance is relatively easy. The lens can be cleaned with a microfiber cloth, and the mount can be lubricated occasionally. It’s important to store the telescope in a dry place to prevent corrosion and damage from moisture.
Accessories and Customization Options
The Celestron AstroMaster 70 AZ Altazimuth Refractor comes with two eyepieces (20mm and 10mm) and a StarPointer finderscope. It also includes an accessory tray for storing eyepieces and other accessories. The included software provides a database of celestial objects to aid in finding targets.
Customization options are limited. While the eyepieces are interchangeable, the telescope’s small aperture limits the benefits of using higher-quality eyepieces. The StarPointer finderscope can be replaced with a better-quality finderscope, but this would require some modifications.
It is compatible with standard 1.25″ eyepieces from other brands, allowing for some flexibility in choosing different magnifications. However, the telescope’s overall performance will still be limited by its aperture and mount stability.
Pros and Cons of Celestron AstroMaster 70 AZ Altazimuth RefractorPros
- Easy to set up and use, ideal for beginners and children.
- Dual-purpose design for terrestrial and celestial viewing.
- Erect image optics provide clear, upright images of land-based objects.
- Lightweight and portable.
- Affordable price point.
Cons
- Small aperture limits light-gathering ability and performance on faint objects.
- Shaky mount makes fine adjustments difficult.
- Cheap plastic components and finderscope.
Who Should Buy Celestron AstroMaster 70 AZ Altazimuth Refractor?
Perfect for: Beginners interested in astronomy, children who want to explore the night sky, casual observers who want a simple and affordable telescope for both terrestrial and celestial viewing.
Who should skip this product? Experienced stargazers, those interested in observing faint deep-sky objects, anyone who needs a highly stable and precise mount.
Must-have accessories or modifications? A better-quality finderscope would be a worthwhile upgrade. A vibration suppression pad under the tripod legs can help stabilize the image.
Conclusion on Celestron AstroMaster 70 AZ Altazimuth Refractor
Pros
- Easy to set up and use, ideal for beginners and children.
- Dual-purpose design for terrestrial and celestial viewing.
- Erect image optics provide clear, upright images of land-based objects.
- Lightweight and portable.
- Affordable price point.
Cons
- Small aperture limits light-gathering ability and performance on faint objects.
- Shaky mount makes fine adjustments difficult.
- Cheap plastic components and finderscope.
Perfect for: Beginners interested in astronomy, children who want to explore the night sky, casual observers who want a simple and affordable telescope for both terrestrial and celestial viewing.
Who should skip this product? Experienced stargazers, those interested in observing faint deep-sky objects, anyone who needs a highly stable and precise mount.
Must-have accessories or modifications? A better-quality finderscope would be a worthwhile upgrade. A vibration suppression pad under the tripod legs can help stabilize the image.
The Celestron AstroMaster 70 AZ Altazimuth Refractor is a decent entry-level telescope that provides a good starting point for exploring the wonders of the universe. Its ease of use, dual-purpose functionality, and affordable price make it an attractive option for beginners and children. However, its small aperture, shaky mount, and cheap components limit its overall performance.
The price is justified for what you get. It provides a taste of astronomy without requiring a significant investment. It’s an excellent way to spark an interest in the subject and see if it’s something you want to pursue further.
I would recommend it to beginners and children who are looking for a simple and affordable telescope for both terrestrial and celestial viewing. Just be aware of its limitations and don’t expect it to perform like a high-end telescope. If you’re on a budget and want a dual-purpose scope, this is a great entry point.
Start your astronomical journey today! The universe awaits.