- 85mm focal length for full-frame format - Covers Full-Frame Format Sensors - Very Fast T1.5 Maximum Aperture - 8 Blade Iris for Attractive Bokeh - Geared Focus and Aperture Control Rings - \Declicked\ Aperture Control Ring - Minimum Focus Distance of 3.6' - Internal Focusing mitigates lens breathing - Aspheric Lens Element Limits spherical aberration - Lens Multi-Coating Improves Transmission The Samyang 85mm T1.5 Cine Lens for Canon EF produces a slightly telephoto angle-of-view on full-frame sensors. It features a very fast maximum aperture of T1.5 and an 8 blade iris, for shallow depth of field with attractive bokeh. The focus and aperture control rings are outfitted with industry standard gearing, which provides an interface for working with a traditional follow focus. The aperture control ring has also been \declicked\, which facilitates smooth iris pulls. The 85mm has a minimum focus distance of 3.6'. Internal focusing minimizes the effects of lens breathing, which insures a more consistent angle-of-view when adjusting focus. The lens is composed of 9 elements in 7 groups, including one aspherical element to reduce spherical aberrations. In addition, a multi-coated elements help improve light transmission. Specification : - Focal Length = 85mm - Lens Mount = Canon EF - Format = Full Frame - Image Circle = Not specified by manufacturer - Maximum T-Stop = T1.5 - Minimum T-Stop = T22 - Minimum Focus Distance from Image Plane = 3.6'; / 1.1 m - Elements/Groups = 9 / 7 - Iris Blades = 8 - Front Diameter = Not specified by manufacturer - Filter Thread = 72 mm - Focus Scales = Not specified by manufacturer - Electronic Communication = Not specified by manufacturer - Tripod Mounting Thread = Not specified by manufacturer - Dimensions (W x H) = 3.07 x 3.07\ / 78 x 78 mm - Length = 2.94\ / 7.47 cm - Weight = 20.46 oz / 580 g