The Nikon EL Nikkor 75mm 1:4 Enlarging Lens is a high-quality darkroom enlarging lens designed for film photography enthusiasts. With a focal length of 75mm, this black lens offers precise and sharp image quality for enhancing photographs in a darkroom setting. It features click stops for easy and accurate adjustments, making it a reliable tool for achieving desired magnifications and image enhancement. This boxed unit is a valuable addition to any photographer's darkroom equipment collection.