望远镜基本常识与鉴别（Basic common sense and discrimination of telescope）.docVIP

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望远镜基本常识与鉴别（Basic common sense and discrimination of telescope）.doc

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望远镜基本常识与鉴别（Basic common sense and discrimination of telescope）

望远镜基本常识与鉴别（Basic common sense and discrimination of telescope） Popular optics knowledge section /zhishi001.html Basic common sense and discrimination of telescope Multiples of a telescope The multiples of a hand-held binocular are almost 7~10 times. It is not a harder telescope, but because of long-term practice, it is found that 7~10 times is the best range for a hand-held telescope. Military handheld telescope strictly follow this standard, like military active duty hand-held telescope, no more than 10 times, the most commonly used, is 7 times and 8 times, such as the U.S. war in Iraq, the most commonly used hand-held telescope, is 7 times. And China is a classic old army mirror, 8 times. Optical industry, 7, 8 And 10 times the best standard multiple range for handheld telescopes (the average Toy Telescope is usually 2~3 times the multiples of the ancient telescope 3~5 times). Desk top telescope Depending on the requirements, optical instrument manufacturers also design and produce various types of telescopes. Some people need to carry them on their own and go out to travel. That is the hand-held telescope mentioned above. Sometimes you dont need to carry it, you dont need a wide field of view, and you need a higher magnification, thats a high-powered desk top telescope. To reduce the shaking caused by multiples, the desk top telescope requires three tripods to aid the fixation. Therefore, it is not suitable for traveling, traveling and carrying - this requires consumers to choose the products according to their own needs. Military telescope Real military hand-held binoculars, first of all, at least thousands of dollars in price, multiples and regular civilian handheld binoculars are the same. Between 7 and 10 times, the civilian handheld telescope is no more than 12 times. The military handheld telescope no more than 10 times, but many immoral traders, taking advantage of people do not know, his telescope called military telescope or Russian telescope, claiming t