The Hasselblad Viewfinder SWC for the 903 (Superwide) camera slides into the shoe on top of the camera and provides the same angle of view (91°) as the standard 38mm Biogon lens.
This optical viewfinder has built-in spirit levels both on top and inside which aid in handheld photography
A magnifying lens at the bottom of the Viewfinder lets you read the focusing distance, depth-of-field and set the shutter speed while viewing
The four lines inside the finder show the area coverage vertically and horizontally for the 6 x 4.5cm format
The Viewfinder also has a comfortable rubber eyecup