(1) Code V中計使用 eva (oal s1..i z1)計算鏡頭長度時是把像面離焦量包含在內的。 Fri5_rxLl
(2) 使用movie.len,計算其三個變焦位置的總長如下 3"".kf,O5e
(OAL Z1 S1..I) = 107.522580166499 sk5\"jna
(OAL Z2 S1..I) = 107.568305499122 %/s1ma6q
(OAL Z3 S1..I) = 107.525471335228 8WH>
不一樣長。拿掉離焦量 ?:ZH%R_`a
THI Z1 S26 0 LV[4z o]=
THI Z2 S26 0 /\9Kr;@vk
THI Z3 S26 0 L \$zr,=C
再計算一次總長如下 M;E&@[5
(OAL Z1 S1..I) = 107.554580166499 bhI8b/
(OAL Z2 S1..I) = 107.542305499122 >eXNw}_j
(OAL Z3 S1..I) = 107.544471335228 Kq*^*vWC
還是不一樣長。說明此案例在沒有離焦時也無精確保持等長。也可以不用歸零離焦量而直接求得同樣長度如下 [kXe)dMX8
(OAL Z1 S1..I)-(CT SI Z1) = 107.554580166499 D"hiEz
(OAL Z2 S1..I)-(CT SI Z2) = 107.542305499122 V*?,r<