SIRUI Sniper series lenses are the most budget-friendly F1.2 AF lens in the market. Consisting of 23mm, 33mm, and 56mm, it is a fusion of speed, precision, and artistic expression for mirrorless cameras. | Swift & Silent Auto-Focus: Equipped with STM (stepping) focus motors, the auto-focus system of the SIRUI Sniper lens, supporting eye AF tracking, locks onto subjects with unerring accuracy and striking sharpness. | Minimal focus breathing and strictly controlled aberration allow focusing on the subject from beginning to end. ED glass and high refractive index glass are added to reduce lens size and meanwhile provide outstanding optical performance with well controlled flare and ghost. | Appealing & Dreamy Look: With vibrant expressions of your subjects, the lens adds an appealing and artistic vibe to your footage without missing a beat. The Sniper series lenses share a uniform color tone for consistent storytelling. | Premium lens Body - The strong aluminum body makes it sturdy and portable in hand. It helps to protect inner optical elements while the minimum weight of each single lens is around only 420g, creating a new era of lightweight fast aperture lens. | F1.2 Large Aperture - Featuring large F1.2 aperture, this sniper lens is perfect for low-light filming. Filming wide open at F1.2, the lens allows for a decent light gathering even in low light condition. Filming at F1.8, it ensuring your images are clear and vibrant with edge-to-edge sharpness and contrast. | Model: SIRUI 56mm F1.2 | Focus Length: 56mm | Frame: APS-C/S35 | Aperture: F1.2-F16 | Lens Structure: 12 elements in 11 groups | Aperture Blade: 11 | Minimum Focus Distance: 0.6m | Filter Spec: M58*0.75 | Rotation Angle of the Focus Ring: 360° | Max. Diameter(mm/inches): 79/3.11 | Diameter of the Focus Ring(mm/inches): 77.6/3.06 | Length(mm/inches): 92.2/3.6