Customized Cine lens sigma 18-35mm T2 (F1.8) Canon ef mount With gear rings for focus aperture and zoom, de clicked, with hard stops, original auto focus and aperture function will not be available We use Canon camera for testing lenses before shipping. Please let us know if your camera is not Canon, especially black magic bmpcc 6k, we will send some shims together, so you can adjust the flange distance. The original lens is Sigma art 18-35 1.8 DC HSM Canon EF mount Housing material: Aluminum Module: 0.8 Mount: Canon EF Front diameter: 95mm Length: 13.5cm Weight: 1.3kgs Focus range: 120 degrees Aperture range: 30 degrees APS-C frame, not support full frame Lens Filter Size: 72mm.