The Marshall V-PL150C is a C-mount pinhole lens for covert surveillance applications. With its 150 mm long focus the lens renders a narrow 3.25° horizontal angle of view. The f/20 aperture renders extreme depth-of-focus though sufficient light must be available. The lens housing is 8" in length which should keep the camera well out of view. According to the manufacturer, the lens will resolve focused images as close as about 15" or about 380 mm.