This can be good, as it gives you a greater field of view, which is better for observing deep space objects. The first is not that important because it can be modified with eyepieces and accessories, the field of view matters a bit more. The focal length helps determine the magnification and the field of view. It is given in mm, so it is 600mm which is equal to a little bit less than 24″. In a refractor telescope like this one, it is pretty much equal to the length of the tube. The 600 is the focal length of the telescope. Let’s start by explaining what the number in the product’s name means. The materials keep it light enough to carry, it’s easy to put together, and the materials and finish are good enough without being spectacular. The tech specs for the Gskyer 600x90mm are pretty standard for its category, which is the 70mm-100mm refractors. Here are some ratings for every specific area reviewed: Optics Just note that Newtonians come with a steeper learning curve and they require maintenance every 12-24 months. If what you want is a telescope that is going to grow with you as you learn, and that has more power, there are Newtonian telescopes in the 130mm range of aperture for almost the same price as the Celestron AstroMaster 130EQ. And second, it’s not very cost-effective when it comes to raw power. If you are looking for a beginner’s scope that “just works”, go for it. It’s especially great value if you can find it on sale (which consistently happens). It’s not the best, but it’s also far from the worst. When compared to telescopes in the same aperture category it performs right in the middle. The optics are good, the build quality is ok, and it comes with all the accessories you need to get started like 3 eyepieces, one Barlow lens, and a smartphone adapter. It requires no maintenance, and the learning curve is minimal. What you are getting with the GSkyer 600×90 is an easy-to-use, reasonably powerful telescope that is a really good beginner’s choice. I directly compared it to the Celestron Astromaster 102AZ which was the refractor with the most similar specifications I had access to at the time. I tested the 600x90mm AZ in 3 different viewing sessions with a variety of climate and sky conditions so I could make a good assessment of its performance. They are based in Zhejiang, China, and since they started selling internationally a few years ago, they have carved a place for themselves in the U.S. Gskyer is an optics company that has been making telescopes for over 30 years. A popular entry-level model in recent years due to its high aperture for a refractor telescope and reasonable price. On this occasion, I got the chance to test the GSkyer 600x90mm AZ. Stop worrying! I am here to help you understand everything you need so you can make an informed choice.
Selecting a new telescope always seems a bit intimidating, especially if you are not familiarized with all the terminology and the meaning of the tech specifications.
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