Cognex In-Sight 7000 Gen2 Série Manuel D'utilisation page 11

Install the C-Mount Lens and Cover
(COV-7000-CMNT or COV-7000-CMNT-EX)
Complete the following steps to install a C-Mount lens and cover to the vision system.
The C-Mount covers are optional accessories and required for IP67 protection.
Note:
When using a C-Mount lens, the following restrictions apply:
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If using the COV-7000-CMNT cover, the maximum lens length is
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41mm, the maximum lens body diameter is 36.5mm and the
maximum diameter including locking screws is 47mm.
If using the COV-7000-CMNT-EX cover, the maximum lens length is
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62mm, the maximum lens body diameter is 36.5mm and the
maximum diameter including locking screws is 46.5mm.
1. Remove the rubber faceplate covering the image sensor window, if
present.
2. Remove the protective film covering the threaded lens opening, if present.
Maximum thread length is 5.25mm.
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The C-Mount lens threads and body cannot protrude more
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than 6.5mm in length into the vision system when screwed in
unless the diameter of the back lens is smaller than
14.75mm. If the C-Mount lens threads and body protrude
more than 6.5mm, you can add a spacer between the lens
and vision system. However, the spacer decreases the
working distance.
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