This is the Mamiya waist level finder for the m645, m645j and m645 1000s. It does not fit the Super, Pro or AF. It is a great accessory, particularly for landscape photography. It makes the camera significantly smaller and lighter, important for backpacking, and lets you step back and look at the image, leading to a more contemplative and thoughtful style of photography. I also find that it is easier to focus critically with the pop up magnifier. The unit is in excellent condition and works perfectly. It comes with the case. (To raise the magnifier hit the little silver tab on the side of the front flap).