Designed for S35 camera sensors, the Laowa Argus S35 18mm T1 Cine Lens from Venus Optics features a Canon RF lens mount and a wide T1 to T11 aperture range for improved low-light shooting. Create a shallow depth of field and dreamy bokeh with the 15-blade iris and lens construction of 15 elements in 10 groups. The focus ring rotates 250°, and the iris ring 87° for intuitive manual adjustments with low focus breathing.