Infrared night vision digital camera/camcorder

Step 6 Break the glue on the lens threads

The lens focus is adjusted at the factory and is held in place with a drop of glue on the threads of the lens module.  You need to break the glue bond in order to unscrew the lens module from the camera sensor.  Do this by prying with a sharp knife, forcing the outer threads away from the inner threads.  You will hear small cracking noises as the glue breaks.  Go all the way around the circumference of the lens to be sure you have cracked all the glue.  Don't try to unscrew the lens yet though.