![]() In contrast to stand-mounted cameras, handheld cameras are designed for bringing the camera to the material to be viewed. Stand-mounted cameras are particularly effective for handwriting because a hand can fit under the camera. To make the process of viewing easier, a table that is movable from the top of the page to the bottom and side to side (referred to as an x-y table) is used with most stand-mounted cameras. Most cameras also need their own light source.Ĭameras that are mounted on a fixed stand require the reading material to be placed under the camera and moved across and down the page. Lower cost video magnifiers often use cameras that have a fixed focus and cannot vary magnification or camera-to-target distance. ![]() ![]() ![]() In most of these systems, magnification level and focus are set after choosing a comfortable and functional working distance between the camera and the material to be viewed. Cameras with zoom lenses provide variable magnification. A video magnifier, or closed-circuit television (CCTV) system, uses a stand-mounted or handheld video camera to project a magnified image onto a video monitor, a television (TV) screen, or a computer monitor. ![]()
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