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16 - User's Manual
When choosing the lens for your IP8172/72P, please notice the specications as below.
1. Flange back length [distance A-B (CMOS sensor)] must be longer than 12.5mm. If the
ange back length is too short, the bottom of screw mount may hit the IR Cut Filter, or
result in out of focus when adjusting the focus controller.
2. The screw mount (distance A-C) must be shorter than 5.2mm; in case that the bottom of
screw mount may hit the IR Cut Filter.
3. The distance between the edge of lens (D) and front panel (E) must be longer than
0.5mm; or, it may hit the front panel when adjusting the focus controller, or result in out
of focus.
A
B
1
2
3
D (lens edge)
E (front
panel)
IR Cut
Filter
A C
NOTE: