SIRUI Astra T1.8 1.33x Full Frame Autofocus Anamorphic Cine Lenses 50mm - L-Mount - Neutral Flare

The SIRUI Astra 50 mm T1.8 brings autofocus to full-frame anamorphic filmmaking, pairing a consistent 1.33x squeeze with a fast cinema aperture. Its perspective suits dialogue, documentary scenes and natural-width compositions, and this L-Mount version has a neutral flare character.Anamorphic framing and flare characterThe constant 1.33x squeeze records a wider horizontal perspective than a spherical lens of the same focal length. When the footage is de-squeezed in post-production, it takes on an approximately 2.35:1 widescreen character from 16:9 capture, together with the elongated bokeh and visual depth associated with anamorphic optics.Autofocus and practical cine handlingThe T1.8 aperture is useful for controlled background blur and available-light scenes. An STM-driven autofocus system and AF/MF switch make the lens practical for independent productions, while cine-oriented focus and aperture controls allow more deliberate operation when needed. The neutral flare version is designed for L-Mount minimum focus is 0.50 m.SIRUI lists an 18-element, 14-group optical design for the 50 mm. Its balanced perspective is useful when a scene needs both a recognisable environment and the wider anamorphic character, rather than a tightly compressed telephoto composition.Key featuresFull-frame coverage and constant 1.33x anamorphic squeeze50 mm focal length for storytelling and detailed framingFast T1.8 maximum apertureSTM autofocus with AF/MF switch67 mm filter thread and common cine gear positionsMinimum focusing distance: 0.50 mNeutral flare renderingL-MountWhat's in the boxAstra 50 mm T1.8 1.33x anamorphic cine lensFront and rear lens capsManufacturer warranty card