Sirui 50mm F1.8 1.33X Anamorphic Lens L-Mount

The Sirui 50mm F1.8 1.33X Anamorphic Lens for L-mount is one of the most accessible entry points into anamorphic filmmaking, offering the distinctive cinematic qualities traditionally reserved for high-end cinema lenses at a fraction of the cost. The 1.33x squeeze factor produces a native 2.4:1 widescreen aspect ratio when desqueezed, delivering the horizontal lens flares, oval bokeh, and unique depth rendering that define the anamorphic look. With a fast f/1.8 maximum aperture, the lens performs confidently in low-light environments and provides beautifully shallow depth of field that takes on a characteristically elongated quality unique to anamorphic optics.

Built with 11 elements in 8 groups using German-made Schott glass, the lens delivers sharp and detailed imagery with the organic rendering that filmmakers seek. The 143.6° focus ring rotation provides precise manual focus control, essential for cinematic pull-focus techniques. At approximately 589 grams, it is remarkably lightweight for an anamorphic lens, making it practical for gimbal-mounted shooting and run-and-gun documentary work. The lens accepts 67mm filters and is designed for S35 sensor coverage on L-mount cameras such as the Panasonic S1H. While it requires manual focus and post-production desqueezing, these are standard considerations in anamorphic filmmaking and are well worth the trade-off for the cinematic character this lens delivers.