This is a SIRUI 50mm F1.8 (1.33x) anamorphic lens, capable of producing cinematic widescreen images (around 2.4:1 aspect ratio) and blue flares. It has been used sparingly and is in very good condition. It has been stored in a dehumidified cabinet. Micro Four Thirds (M4/3) mount. Compatible with GH series / OM SYSTEM / BMPCC4K, etc. ※A 67-72mm step-up ring is attached in the photos. It will be included separately. Main Specifications (as stated): • Focal Length: 50mm (Horizontal field of view equivalent to approximately 37.5mm) • Aperture: F1.8–16 (Manual aperture ring) • Minimum Focusing Distance: 0.85m • Filter Diameter: 67mm • 1.33x Squeeze / Anamorphic Flare Condition (Subjective): • Exterior: Minor scratches and scuffs from normal use. • Operation: Both focus and aperture operate smoothly. • Optics: Inspected under strong light, no mold or clouding is visible / Minor dust may be present. I judge this to be within a range that does not affect actual shooting. • Mount surface is clean, no play. Included Accessories: • Lens body (M4/3) • Front cap / Rear cap • Step-up ring 67→72mm • Original box 1