Types of Binoculars (Porro Prism vs Roof Prism) Binoculars can be divided into t...
VIEW DETAILS >The function of the eyepiece is to magnify the real image (intermediate image) m...
VIEW DETAILS >How far a telescope can see is related to the size of the aperture, the larger t...
VIEW DETAILS >A telescope is a visual optical instrument used to observe distant objects. It c...
VIEW DETAILS >Binoculars (hereinafter referred to as "binoculars") have the advantages of clea...
VIEW DETAILS >Whether it is used to monitor the enemy's situation or use ordinary terrain surv...
VIEW DETAILS >If the telescope has an equatorial mount, the telescope's right ascension and de...
VIEW DETAILS >(1) Unfold the tripod and adjust the height. (2) The equatorial mount is connect...
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