Cinematic Widescreen Capture — Achieve a distinctive 2.39:1 widescreen aspect ratio on full-frame cameras with a constant 1.5x anamorphic squeeze. The SIRUI IronStar 35mm anamorphic lens yields a stunning 2.25:1 aspect ratio in 3:2 shooting mode, captures an ultra-widescreen 2.66:1 ratio in 16:9 mode. Exceptional Low-Light Performance — Features a fast T1.9 maximum aperture for capturing bright, clear images even in dim lighting. The wide aperture creates a shallow depth of field, enhancing subject separation and delivering a professional, cinematic look. Universal Camera Compatibility — The SIRUI Ironstar lens features an innovative interchangeable mount system. It includes a native PL mount and a user-interchangeable EF mount, ensuring compatibility with a vast range of cine-style, mirrorless, and DSLR camera bodies. An integrated back focus system guarantees a flexible and efficient workflow. Outstanding Image Quality — The lens delivers pleasing sharpness across the frame, particularly in the center, complemented by a distinctive and attractive bokeh. Image integrity is maintained with controlled flaring and minimal focus breathing for a polished final product. Precision Optical Engineering — Engineered with a combination of aspherical and cylindrical lens elements, this lens delivers high-resolution visuals with minimized chromatic aberration and reduced focus breathing. The result is consistently sharp, cinematic-quality imagery. Precision Optical Engineering — Engineered with a combination of aspherical and cylindrical lens elements, this lens delivers high-resolution visuals with minimized chromatic aberration and reduced focus breathing. The result is consistently sharp, cinematic-quality imagery. IronStar Series Full-Frame Anamorphic Cine Lens, 35mm Focal Length, Full Frame, Interchangeable EF/PL Mount, Blue/Neutral Flare, 20 Elements in 16 Groups, Max Aperture T1.9, Min Aperture T16, Minimum Focus Distance 0.65m, Manual Focus, Filter Size M92*P0.75, Focus Throw 270°, 46mm Image Circle, Max Diameter 95mm/3.7inch (EF/PL Mount), Length Exclude Lens Cap 131mm/5.2inch (EF Mount); 123mm/4.8inch (PL Mount), Weight Exclude Lens Cap 998g/2.2lb (EF Mount); 1024g/2.3lb (PL Mount)