Orion starblast II 4.5 equatorial reflector telescope review [10 Key parameters]

What are the characteristics Orion starblast II 4.5 equatorial reflector telescope review? Telescopes open up an exciting journey into the celestial sphere, offering enthusiasts unprecedented opportunities to study night sky objects clearly and accurately. StarBlast II 4.5 is the perfect companion for those who want to see the wonders of space through their very first telescope.

Let’s delve into the features and functionality that distinguish this telescope from others during its familiarization journey through the vast expanses of the night sky.

orion starblast ii 4.5 equatorial reflector telescope review
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Orion StarBlast II 4.5 Equatorial Reflector Telescope

The Orion StarBlast II 4.5 equatorial mirror Telescope has a compact design. An optical tube with an aperture of 4.5 inches allows it to capture enough light. A focal length provides a balance between a wide field of view and magnification.

The presence of tubular rings provides stability during observations and helps the user to easily attach the telescope to the mount.

Thanks to the different magnification options people can make the first experience unforgettable.

Key parameters of the Orion StarBlast II 4.5 Equatorial Reflector Telescope:

  • Aperture: 4.5 inches (114mm)
  • Focal Length: 450mm
  • Focal Ratio: f/4
  • Optical Design: Newtonian Reflector
  • Mount Type: Equatorial
  • Total Weight: 20 pounds (9.1 kg)
  • Tube Length: 18 inches (45.7 cm)
  • Tube Diameter: 4.5 inches (11.4 cm)
  • Magnification Options: Various magnification options with different eyepieces
  • Additional Features: Tube rings for stability during observations

Optical performance

The StarBlast II 4.5 telescope consistently delivers exceptional optical performance while maintaining the same optical quality.

Observers can get a clear image resolution that allows them to examine objects in detail. You can see Jupiter’s cloud belts and its other dynamic features, Saturn’s rings.

In addition, the telescope does an excellent job with the resolution of double stars, offering a clear distinction between paired stars, which with smaller instruments could look like a single luminous dot.

To sum up, the optical perfection of StarBlast II 4.5 provides an unforgettable observation experience, revealing the beauty and complexity of celestial objects.

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Features & benefits

The Orion StarBlast II 4.5 Equatorial Reflex Telescope has many functions and advantages. The characteristics of the equatorial installation ensure smooth and accurate tracking of objects. Great optics provide a clear and detailed image of various celestial objects, making it an ideal tool for both beginners and experienced users.

The StarBlast II 4.5 EQ optical tube is designed to capture deep sky objects with exceptional clarity, revealing complex details, such as the moon’s surface.

The StarBlast II 4.5 EQ optical tube provides a balance between portability and performance. Which makes the telescope versatile and easy to transport. The combination of a secure mount, excellent optics, and moon observation capabilities makes the Orion StarBlast II 4.5 telescope with an equatorial reflector a valuable tool for exploring the wonders of the night sky.


One of the notable limitations of the StarBlast II 4.5 EQ is the relatively short focal length of the telescope – 450 mm, which may affect its ability to achieve high magnifications, limiting detailed observations of some distant celestial objects.

In addition, the equatorial mount, although it provides accurate tracking, can be more difficult to master for beginners.

The process of setting up and adjusting the mount may take some time.

Although the optical quality is generally commendable, users who are looking for advanced astrophotography capabilities may find the telescope design less suitable.

Finally, the included accessories, such as eyepieces, may not match the preferences of more experienced astronomers, who often look for higher-quality accessories to improve viewing quality.

In general, potential buyers should compare these considerations with their specific needs and preferences before deciding whether the Orion StarBlast II 4.5 telescope with an equatorial reflector meets their expectations.

Setup & use

Unlike more sophisticated telescopes, this model belongs to the beginner scope category, offering a simple assembly process that allows users to get started with minimal effort.

The equatorial mount is equipped with slow-motion controls that facilitate smooth and precise adjustment. They are especially useful for those who are still honing their sky navigation skills.

The Orion StarBlast II 4.5 equatorial reflex telescope with a convenient setup and thoughtful activation will help beginners quickly familiarize themselves with the telescope’s operation.

Understanding the telescope’s mirrors and lenses

The telescope’s 450 mm focal length is a major factor in deciding the magnification and field of vision it can achieve. The primary mirror is an essential part that gathers and reflects light to provide a great image. It is constructed of soda lime plate glass.

Unlike refractor telescopes, which use lenses to deflect and focus light, StarBlast II 4.5 EQ uses a curved mirror to achieve the same effect. This contributes to the compactness of the telescope while maintaining optical integrity. The red dot finder increases ease of use by helping you find celestial objects efficiently.

It’s important for users searching for solutions for universal magnification to be aware that a Barlow lens exists.

Depending on the eyepiece you choose, this accessory essentially doubles the focal length, enabling you to use either a greater or smaller magnification.

Also, the optical system is equipped with a parabolic lens. This ensures that the telescope provides a great image of the celestial wonders. The combination of a parabolic mirror, a dot finder, and a Barlow lens with a lower magnification makes the Orion StarBlast II 4.5 equatorial reflex telescope a universal tool for both beginners and experienced astronomers.

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Things to consider before buying

It is important to consider several factors before buying. First, evaluate the characteristics of the equatorial mount, as the equatorial mount affects the telescope’s tracking capabilities. If you prioritize accurate and smooth tracking of celestial objects, the eq mount performance should be a key factor.

Resolving power is another important aspect that needs to be considered. Think about the types of celestial objects you want to observe and whether the technical specifications correspond to this.

For those who are interested in capturing their observations and sharing them, having accessories such as a smartphone adapter can be crucial. This makes it easy to connect your smartphone to the telescope and share your views with others.

Finally, if your plans include long observation sessions or astrophotography, consider adding a motor drive to the equatorial installation.

By carefully considering these factors, you will be able to make an informed decision that suits your astronomical goals and preferences.

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Image credit: www.skyatnightmagazine.com

User experiences and observations

StarBlast II 4.5 has established itself as a reliable tool for capturing the beauty of space clusters. Because the optics of the telescope allow you to transmit complex details of densely spaced star formations.

Moreover, the buyers expressed their satisfaction with the telescope’s ability to determine the features of the Moon in great detail.

The optical system provides excellent clear views of the moon’s surface, especially crater formations, mountain ranges, and lunar seas with impressive clarity.

Observing the Moon with the StarBlast II 4.5 Equatorial Reflex Telescope is often described as an exciting experience. It allows users to evaluate the variety of celestial bodies.

All this makes it an excellent choice for those who want to explore star clusters and carefully study the intricacies of lunar features.

Accessories inside the box

The package usually includes a set of eyepieces designed to provide various magnification options, which allows observers to adapt their views to various celestial objects.

For those who are interested in sharing their heavenly experiences with others, the kit may include an adapter for a smartphone.

It is important for users to carefully inspect the contents of the box upon receipt to ensure that all specified accessories are included.

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Dobsonian adaptation

The Orion StarBlast II 4.5 equatorial reflex telescope is usually equipped with an equalizer mount rather than a Dobsonian mount.

However, for those who prefer the simplicity and stability of a Dobson-style mount, it is possible to adapt the telescope for use with such a mount.

Dobson mounts are renowned for their intuitive design, which makes them particularly attractive to beginners and casual observers.

While the EQ mount provides sky-tracking capabilities, the Dobsonian mount is simple, providing smooth and straight-line movement for navigating the night sky.

Telescope performance

The Orion StarBlast II 4.5 EQ exhibits good performance across various astronomical observations. Its primary mirror plays a pivotal role in capturing and reflecting light. The equatorial mount enhances the telescope’s overall performance.

The option to add a motor drive to the EQ mount is noteworthy for those looking to further enhance the experience.

It automates the tracking process, minimizing the need for manual adjustments.

As a reflector scope, the StarBlast II 4.5 EQ leverages its design to provide excellent light-gathering capabilities, making it well-suited for observing a wide range of celestial targets.

Troubleshooting and maintenance

Regular inspection of the optical components of the telescope will help prevent dust and debris from accumulating and affecting the image quality. If there are problems with the electric drive, check the power supply and connections.

Also, keep the telescope closed when not in use to prevent dust accumulation. Lubricate moving parts such as slow motion controls regularly to maintain smooth operation.

By periodically paying attention to these aspects, users can keep the telescope operational.

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Image credit: www.skyatnightmagazine.com


In conclusion, the Orion StarBlast II 4.5 Equatorial Reflex Telescope is a wonderful instrument that organically combines portability and optical characteristics. The telescope’s 4.5-inch aperture has remarkable light-carrying ability, despite its compact form falling short of expectations and rendering it more than simply a portable choice for casual stargazing.

As a large telescope in a compact package, it is an attractive option for both beginners and experienced enthusiasts, opening up access to the wonders of space without compromising performance.

Ida Stewart

I have had the incredible opportunity to work as a tour guide at the planetarium for over 5 years. Ever since I was a child, astronomy has held a special place in my heart, and I have nurtured a deep passion for exploring the wonders of the universe. Among all the celestial bodies, Mars has always fascinated me the most, captivating my imagination with its mysterious allure.

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