The DZOFilm DZO 20-70mm T2.9 MFT Parfocal Cine Lens is a parfocal (maintains your focus while zooming in/out) cine lens in Micro Four Thirds mount with a maximum aperture of t/2.9 with 12 blades and a minimum focus distance of 79cm. The lens has minimal focus breathing and has markings in both meters and feet. The DZO 20-70 weighs 1102 kg and uses 77mm filter thread. Comes with 1/4” thread lens support. The front diameter is 80mm. The focus throw is 270°. The DZO 20-70 mm T2.8 MFT lens length is 157.5 mm.