Tuner - L2 is inspired by our favorite Canon K-35 lens, a revolutionary lens for its time with a T/1.5 speed and aspherical elements. You’ll recognize its look in films such as Alien and American Hustle. This look gives you a calmer glow to your footage. Note: I like referring to a few movies that the older lenses we’re shot on. A few famous films the K35s were used on are Alien, Barry Lyndon, and American Hustle. FEATURESSupported Lens Brands: Canon, Tamron, SigmaInspired by Canon® K-35Magnification: 1.1xF/# Max (Optical) - F/1.4Electronic control supported: Focus(wire), Aperture, IS and Autofocus Pass ThroughTuner Dial Rotation: EF lens mount.Vari-Tune Technology (World Wide Patent Pending)SPECIFICATIONSLens TypeVariable Look Zoom AttachmentMaterialsCinema Grade Optical GlassBody ConstructionAluminum with hard anodized finishingPrime LensEF Mount OnlySupported Lens BrandsCanon, Tamron, SigmaElectronic control supportedFocus(wire), Aperture, IS and Autofocus Pass ThroughInspired ByCanon® K-35Magnification1.1xF/# Max (Optical)F/1.4Lens Image CircleFull FrameCoatingsSingle LayerDimensionsW 77mm x D 72mm x H 47mm (W 3" x D2.85" x H1.85")Weight215gms / 0.5lbsTuner Dial RotationEF lens mountTechnologyVari-Tune (World Wide Patent Pending)Firmware UpdateVia USB