A monocular telescope is very common and adds its own ideas. The structure is no problem and the effect is good. The stray light is good. At present, monoculars do not do this. The cost is not high. It looks good. A monoculars with high magnification have the disadvantage that they are unstable and a little shaking in their hands. Some people are not used to it except for adding brackets. I don't know how to deal with it. If there are experts who want to point out that the rendering effect is not good, please give me more advice.