The fifth cine lens of Meike in Super 35 Prime Cine Lens Series: 18mm T2.1. With a image circle of 33.6 mm,this lens compatible with Super 35 cameras,and it will be available in two lens mounts,PL/EF. This lens is one of Meike's cine lens in new Super35-Prime Cine Lens Series. It has industry-standard 0.8mm pitch gears on the focus and aperture ring.Min Focal Dist: 25cmFilter Thread: ø77Outer Diameter 80mmStructure: 15 Elements in 10 Groups Focal Length: 18mmAperture Range: T2.1-T22Iris Blades: 10Gear Mod: M0.8Focus Rotation: 270 DegreeDimensions (Ø x L): PL 85.5x93.4 mm, EF 85.5x101.45mmFOV: Diagonal: 76.6 °, Horizontal: 63.2°, Vertical: 45.5 °