How to replace the lens (d91 / d92 only) – ACTi D91 User Manual
Page 27
Hardware Manual
How to Replace the Lens (D91 / D92 only)
For wider viewing angle, the bundled lens can be replaced with the optional IR-compatible lens.
Contact your sales agent to purchase.
To replace the lens, follow the procedures below:
1.
Using the bundled hex screwdriver, loosen the three (3) screws to open the dome cover.
2.
Attach the lens focus tuner to the lens and continuously rotate until the lens comes off.
3.
When the lens comes off, remove the spring and remove the bundled lens from the lens
focus tuner.