Mounting and removing lenses
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10.1 Removing an infrared lens
Note
• Do not touch the lens surface when you remove an infrared lens. If this happens,
clean the lens according to the instructions in section 20.2 Infrared lens, page 78.
• When you have removed the lens, put the lens caps on the lens immediately, to pro-
tect it from dust and fingerprints.
10.2 Procedure
Follow this procedure to remove an infrared lens:
1. Rotate the lens counter-clockwise 30° (looking at the front of the lens).
2. Carefully pull out the lens from the bayonet ring.
10.3 Mounting an infrared lens
Note Do not touch the lens surface when you mount an infrared lens. If this happens,
clean the lens according to the instructions in section 20.2 Infrared lens, page 78.
10.3.1 Procedure
Follow this procedure to mount an infrared lens:
1. Correctly position the lens in front of the bayonet ring.
2. Carefully push the lens into position.
3. Rotate the lens 30° clockwise (looking at the front of the lens) until a click is heard.
#T559950; r. AD/35720/35720; en-US
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