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fagbit:燈泡應(yīng)放在焦點(diǎn)前312.5毫米處 (2013-12-03 14:19) %0_}usrsk
deokeap:看圖貌似不知道燈泡一方的鏡頭焦點(diǎn)在哪兒 rCd*'Qg 如果能知道的話,可以用牛頓公式 xx‘=ff計(jì)算’ (2013-12-03 13:45) qkA8q@Y4|
longjiang_m:貌似是應(yīng)該這樣,但是實(shí)際貌似不對(duì)。。。很奇怪 (2013-12-07 17:48) }1|FES
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