High Quality Material: The use of sturdy all metal material ensures that daily small scratches and harsh environments will not damage the optical components inside the lens. Compatible for BMPCC M4/3 mount models, 4K 6K, for ZCAM E2G, for E2 M4, for E2, for E2C and other cameras. Long Focusing Stroke: Stepless focusing gear design, ultra long 270° focusing stroke, can be adapted to various follow focus devices, can focus accurately during the shooting process, and make the focus movement more delicate. Easy Operation: It only takes ten seconds to change the lens, the size, length and diameter of the series film heads are almost the same, and the positions of the focus ring and aperture ring are the same. It is guaranteed that when using this series of cine lenses, the accessories do not need to be reinstalled, and the stabilizer does not need too much balance adjustment. T1.05 Large Aperture: Stepless aperture design, equipped with imprint slide mode, to ensure silk transition of video screen exposure, T1.05 aperture, can maintain high image quality in low light and low illumination environments. Low Breathing Effect: By improving the lens structure design, the cine lens has a good control of the breathing effect, which can reduce the focus when shooting.