The Marshall V-LPL5 is a true specialty lens that uses very high optical technology for covert surveillance video applications. The lens is actually a very narrow tube, 4.65 inches long, that attaches onto CS-mount industrial camera. The tube can be used to pass through walls or ceilings where only the tiny front element is exposed.
Eye Spy
The V-LPL5 is true high tech surveillance gear that puts your camera in seemingly impossible locations. It's 4.65 inch tube not only will it put a video lens right in the middle of the action in total secret, it also captures a very wide 81° horizontal angle of view. A similar lens with a longer tube length is also available. The V-LPL8 can pass through walls up to 9.4 inches deep.