The Leitz Visoflex is a reflex attachment for Leica thread mount cameras and lenses. With ordinary LTM lenses, you can use this accessory for macrophotography; with Visoflex lenses, you can shoot telephoto lenses too long to be practical with a normal rangefinder. Now, is a Visoflex actually something that can be described as "practical"? No. Maybe. It depends. But if it sounds like you might want to find out for yourself, this Visoflex is in excellent condition, and it includes a chimney viewfinder. Lenses, camera, and accessories are sold separately.