Technical features: Lenses usable with normal bellows: 65 mm, 75 mm, 90 mm , 150 mm, 210 mm, 300 mm, 360 mm* weight 1.5 kg dimension when close 21x20x10 cm min extension 5 cm max extension 39 cm tripod socket with 1/4" and 3/8" Fast and fine focus system Fresnel lens included Graflock back compatible Lensboard type: linhof technika LENS BOARD NOT INCLUDED