Which brand of domestic telescope is good? (the kind with high cost performance)

Yunnan North Optoelectronic Group Co., Ltd. (formerly Yunnan Optical Instrument Factory) has accumulated strong comprehensive capabilities in scientific research, development, production and sales in recent 70 years. Many China firsts have been created, such as the first telescope in China, the first infrared observation mirror in China, the first optical glass melting workshop in China, the first low-light-level observation mirror in China and the first rangefinder in China. The "Panda" telescope series products created by the company have formed a symbol of brand and quality in the minds of many new and old customers at home and abroad. The company has long been committed to the research and application of precision machinery, optics, electronics, infrared, low light level and thermal imaging technology. The company's industry includes the production and sales of optical glass melting, optical components, precision mechanical parts, photoelectric imaging component processing, optical measuring instruments, optical auxiliary materials and optical cold (hot) processing machinery.