This Beattie Intenscreen is an interchangeable focusing screen compatible with the Nikon F3 camera. This Matte/Fresnel screen features a grid pattern with center reference circle and is ideal for architectural and other precision photography.
The lack of contrast and image definition with some original focusing screens can make it difficult, if not impossible, to bring a subject into sharp focus. An Intenscreen will increase image brightness by 1 to 1.5 stops, making it easier to focus on a distant subject, especially when using a telephoto lens.