Large Format ground glass focusing screens are notoriously dark and difficult to focus. The Beattie Intenscreen™ combination of a fresnel lens and an anti-reflective glass cover plate increases the view through your, 6x9cm, 4"x5", 5"x7" and 8"x10" camera by up to 4 f-stops! You'll never have to hide under a focusing cloth again. Intenscreen's for View Cameras offer the brightest viewing with excellent contrast, accurate focusing and precision grids.