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. 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. 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. 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. 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.