鏡頭可以定義一個ZFILE變焦鏡頭，輸入如下，在所有其他鏡頭數據之后，必須將其放入RLE或CHG文件中。
]Hj<IvG ZFILE NGROUPS (number of zooming groups鏡頭組)
ivgpS5 M`Y [ COBJ ]
o;"OSp [ CAM RANK RANK ]
Bc-yxjsw [ CAM DAMP DAMP ]
{E e>n^1 [ CAM EXPONENT EXP ]
Q "r_!f [ RSOLVES ]
" }gVAAvc7 [ CUBIC ]
b<I9 MR [ ZFOCUS TH0 JSN DT[ GIHT ] ]
&}mw'_ I FIRST LAST [ PFOCUS / DFOCUS ] (surfacenumbers enclosing first group包含第一組的表面編號)
/T^ JS FIRST LAST [ PFOCUS / DFOCUS ] (second group,etc. 第二組等)
r5&I?
0 …
inPJ2uBD\^ ZOOM 2 (defines zoom position 2. Thenominal lens is zoom 1. 定義了變焦位置2。標準
透鏡是變焦組1。)
`7aDEzmJ [ FNO FNUM ]
I7
