Using your DEVA
Slide the protruding 2" Coupling over the lens of the video camera CAREFULLY, and tighten the metal clamp until there is a good seal between the DEVA and the camera lens. Turn off, or block your internal infrared (IR) light (THIS IS ESSENTIAL!). Most Sony Digital Nighshots have detachable hotshoe IR's that can simply be turned off, but on Hi-8 and other models, you may have to engineer some way to either turn off your video camera's IR light, or block it completely. Remember: infrared light can pass through materials that may look opaque to the human eye, so if you have to block your IR, test different materials until you find one that works well. Point your video camera at a mirror, and look through the viewfinder in NightShot mode - you shouldn't be able to any light coming from your video camera's internal IR.
Once you get DEVA secured and your internal IR light either turned off or blocked, you must now find another source of infrared lighting. You can either "piggy-back" off another video camera's IR light, or use an IR Extender (available from Sony, model HVL-IRC, these are self-contained IR sources, mountable on any tripod). You MUST place the IR extender or pickybacking camera at LEAST three feet to the side of your DEVA-equipped video camera, and aim it to illuminate the area your camera is pointed at.
When using DEVA, remoting the infrared light source is the key to eliminating all dust contamination - because reflections off contaminants will not be directed back into the camera lens. Read "The Truth About Orbs" for more information on close contaminants in photography and video. Congratulations, you are done, and ready to enjoy hundreds of hours of contaminant-free video!