FOCUSING RANGE OF HASSELBLAD LENSES
Hasselblad lenses, like all lenses, can be focused down to a certain minimum distance, which depends mainly on the lens design and the focal length of the lens. All lenses can be used at closer distances in combination with closeup accessories. Used at closer distances with accessories, the lenses behave as they do at longer distances. The lens-to-subject distance determines the perspective. Different focal length lenses cover different background areas and blur the background more or less. You can cover the same area from different distances with different focal length lenses.
The distance between the lens and the subject in close-up photography is often called the working distance. ...