The SP90038 CCTV lens with a 50 mm focal length images an object from a given plane in front of the lens onto the CCD while reducing the size. When direct imaging in front of the camera, like imaging an image projected onto a defusing surface, like a ground glass plate, it is necessary to reduce the image so that it completely fits onto the CCD chip surface. It is supplied with one 8 mm spacer and five 5 mm spacers.