1. A short lens barrel can be used to obtain a long focal length, so it is easy to match the eyepiece with a general focal length to obtain a high system magnification;
2. Compared with a refracting telescope, a larger aperture can be obtained at the same cost; compared with a reflecting telescope, a longer focal length can be obtained with the same aperture and shape size;
3. The lens barrel is sealed to reduce the corrosion of the reflective coating by air, thus prolonging the service life of the system;
4. Small size, easy to carry, relatively easy to achieve field observation;
5. The maintenance is simple, almost no need to maintain;
6. Compared with refracting telescopes of the same caliber, the price is lower.
[Disclaimer: The above content comes from the Internet, and does not represent the views of this site. I hope some of the content can help you. 】
We (Alice) are a manufacturer specializing in the production of optical signs, focusing on providing supporting services for the furniture industry, machinery industry, electronic and electrical industry and other industries, mainly producing zinc alloy, aluminum, stainless steel, copper, brass, pvc Wait for different labels.
Contact us E-mail: sales03@alicelogo.com