Feature: 1. T1.05 Large Aperture: Stepless aperture design, equipped with imprint slide mode, ensures a stable transition of video image exposure, T1.05 aperture, maintain high image quality even in low light and low illumination environments. 2. 270° Ultra Long Focusing Stroke: Stepless focusing gear design, 270° focusing stroke, can be adapted to various follow focus devices, can focus accurately during shooting process, and make focus movement more delicate. 3. Compatible For E Mount Cameras: Suitable for A7S A7SII A7R A7RII A7RIII A7III A9 NEX 3 3N 5 NEX 5T NEX 5R NEX 6 7 A6400 A5000 A5100 A6000 A6100 A6300 A6500 etc. 4. Soft Bokeh: Maximum T1.05, minimum T16 aperture, 13 aperture blades, easy to obtain soft bokeh, making the picture more vivid and not stiff. 5. 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 shifting when shooting. 6. Manual Focusing: This is a manual lens and supports manual focus, you need to enable M mode in the camera settings, turn on the Shutter release without lens function. 7. Simple Replacement: Easy to install and remove, accessories do not need to be re installed, and the stabilizer does not need too much balance adjustment, and it only takes ten seconds to complete the replacement. 8. Durable And Strong: The use of sturdy all metal and optical glass materials ensures that daily small scratches and harsh environments will not damage the optical components inside the lens. Specification: Item Type: Camera Lens Material: Metal, Optical Glass Weight: Approx. 1176g / 41.5oz Lens Support Mount: for E Mount Format: APS C Aperture Blades: 13Pcs Filter Size: 82mm / 3.2in Focal Length: 50mm / 2.0in Aperture: T1.05 to T16 Lens Structure: 7 Elements in 5 Groups Field of View: 31.8° Closest Focusing Distance: 0.5m / 1.6ft Aperture Ring: Stepless Aperture Lens Stabilization: Without Stabilization Focus Method: Manual Focus Compatible For E Mount Cameras: For A7S A7SII A7R A7RII A7RIII A7III A9 NEX 3 3N 5 NEX 5T NEX 5R NEX 6 7 A6400 A5000 A5100 A6000 A6100 A6300 A6500 etc.. Package List: 1 x Lens1 x Front Lens Cover (Installed)1 x Rear Lens Cover (Installed)1 x Manual6 x Screw