Christie GS Series Technical Reference page 61

ZOM–Lens Zoom Position Adjustment
Sets the lens zoom.
Commands
Command Description
ZOM <value> Increases or decreases the zoom.
GS Series Serial API Commands Technical Reference
020-000814-01 Rev. 1 (06-2015)
Serial API commands
Values
n = Increases zoom by 1
p = Decreases zoom by 1
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