Zhongyi Optics SPEEDMASTER 90mm Single Medium Telephoto F1.5 L-Mount (Bayonet) Lens, Focus,

Compatible mount: L (compatible with Leica, Panasonic, and Sigma L mounts) Focal length: 90mm / Lens construction: 9 elements in 6 groups (2 ED lenses, 2 high-refractive-index, low-dispersion lenses) / Compatible image size: 35mm full-frame Focus: MF (Manual Focus) / Aperture: F1.5-F16, Aperture Blades: 9 / Minimum Focusing Distance: 1.1m / Maximum Magnification: 0.09x / Filter Diameter: 67mm Size: Φ74mm x 103mm (excluding mount) Weight: Approx. 770g Screw-on lens hood included / Manufacturer's warranty: 2 years (covers natural failure) The Zhong Yi Optics Speedmaster 90mm F1.5 is a large-aperture, mid-telephoto lens compatible with full-frame cameras. Its apochromatic optical design, including two ED lens elements and two high-refractive-index, low-dispersion lens elements, ensures stable imaging even at widest apertures. Its approximately 27-degree angle of view and maximum aperture of F1.5 allow for separation of the subject from the background, making it ideal for portrait photography.