The Pentax C31204 is a manual zoom lens for C-mount cameras. Its focal lengths range from 12.5 to 75mm giving wide range of angles of view and scene sizes. With a fast f/1.8 aperture throughout its zoom range the lens will capture images in less than brightly lit conditions. For consistent image control the lens has click-stops on the iris ring.
Fast and Clear Images
The C31204 has a wide range of view angles with its 12.5 to 75mm zoom range. At full wide on a 2/3-inch CCD camera it displays a horizontal angle of 38° and vertical of 7.3°. When focused as the MOD of 1 meter the scene size is 40 horizontal feet x 30 vertical feet.