The Focusing Screen Adapter SWC is specially designed for the Hasselblad SWC camera models. It provides a remarkably high brightness and even illumination over the entire image area. The screen has a line grid where the top and bottom lines show the image borders of the 6 x 4.5cm image format and a split image rangefinder in the center for easier focusing. The adapter attaches to the camera body in the same way as the film magazine. The accessory mount accepts all viewfinders in the Hasselblad system.