First, a bad quality telescope will suffer from chromatic aberration, also known as “color fringing” or “purple fringing”. At least two problems may occur when you buy the ‘wrong’ telescope that is unfit for astrophotography. The first requirement is that you want a telescope that is able to produce high quality pictures of deep sky objects such as galaxies, star clusters, and/or nebulae. In short, mastering astrophotography is like running a marathon, it’s not a sprint. It will also take time to master all of the astrophotography skills needed to accurately track and capture deep-sky objects. You will also need other gear such as a good tracking mount and a camera. Before I start discussing these criteria in more detail, I have to warn you that your telescope is only one piece of the astrophotography puzzle. Third, your telescope should be easy to set up and use, and fourth, your telescope should not require any maintenance. Second, your telescope should be affordable.
First of all, the telescope should produce a high-quality image of deep-sky objects. I would argue that there are at least four criteria you should look for when buying your first astrophotography telescope. NOTE: I’VE MADE A NEW B/VLOG FOR AFFORDABLE TELESCOPES IN 2021 CLICK HERE TO CHECK IT OUT! Important criteria when buying your first telescope for astrophotography