on Paramount's chart of tips and plugs Fits the older style "C" lens and will not interfere with the quick focus handle (if one is attached). Heavier metal housing prevents common problem of the cord working loose and falling out of the camera. This connector should not be used on any other cameras or lenses but "Hasselblad C lens". (Identification of the Hasselblad C lens: usually silver in color, PC sticks straight out of this lens like a nipple, two rivets hold the PC to the lens.)