這是 FIR 指令的說明 PF+SHT'4}#
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At any conjugate, finite or infinite: A`I ;m0<
EFL – Effective focal length V."qxKsz
BFL – Back focal length c_N'S_)~7Q
FFL – Front focal length g,O3\jjQ
FNO – f/number S [=l/3c
IMG DIS– Actual image distance (SI-1 to SI) o_#F,gze)S
OAL – Overall length (S1 to SI-1) -LnNA`-
ANG – Object space last field angle (in degrees) `at>X&Ce,
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PARAXIAL IMAGE B s {n
HT – Height on image surface |9;MP&68
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ENTRANCE PUPIL U8]BhJr$Q
DIA – Diameter BK[ YX)
THI – Distance from S1 to pupil LEgx"H=c
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EXIT PUPIL fEYo<@5c]
DIA – Diameter j-n-2:Q
THI – Distance from SI-1 to pupil 3x6@::s~
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Add at finite conjugates (if applicable): MVYf-'\^
RED – Reduction ratio ;p] f5R^
FNO – f/number at actual conjugate IPxK$nI^
OBJ DIS – Object distance (SO) -+H?0XN
TT – Total track distance (SO to SI) QZO9CLX 8k
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PARAXIAL IMAGE Lk8NjK6
THI – Paraxial image distance (from SI-1) rd0[(-