The cokin z pro series is designed for medium format cameras as well as wide angle lenses and is recommended for focal lengths from 20mm onwards 35mm format this series is also well adapted to broadcast useit fits a large variety of lenses thanks to a range of adaptor rings covering the popular diameters up to 96mm additional rings designed for hasselblad b60b70 and rollei are also availablethe z pro filter holder is designed to fit both film and digital technology in particular d slrs