The Hasselblad 907X Optical Viewfinder is a simple, compact viewfinder designed for use with the Hasselblad 907X 50C camera. This unit attaches seamlessly to the camera using its shoe mount. For the XCD 21mm, 30mm, and 45mm lenses, this accessory has a wide field of view, a center cross to help with alignment, and frame-line markings.