IOS没越狱的同好福利来啦! |
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SKY-Watcher150/750,EQ3-D,极轴镜,双轴电跟,QHY5T,猎手7*50,晶华3X,佳能600D 信达小黑用户交流群253119772(一键加入)
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BADMAN:目镜的表现视场的简易计算:表现视场=57.5/焦距*视场光阑(度)
举例说明一个焦距20mm的目镜,视场光阑直径是24.5mm,它的表现视场=57.5/20*24.5=70度 |
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寻找学生同好QQ:2284006580(DSMelody)
skywatcher150750;iOptron zEQ25 SAMSUNG NX11;p2 |
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有星就不会迷路了
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