T1.2 Large Aperture - Featuring large T1.2 aperture, this cine lens is perfect for low-light filming. No need to use extremely high ISO and you'll get a pure low noise night scene. The fast T1.2 aperture also contributes to pleasing bokeh quality and clear subject, giving the footage extra expressiveness and aesthetics. | Night Walker 55mm - SIRUI Night Walker Series cine lenses come in S35 coverage. The Night Walker 55mm is equivalent to a 77mm full frame lens, suitable for close-ups, portrait filming. SIRUI Night Walker is available in classic black and fashionable metal gray. Both choices are premium and aesthetic in the appearance. | Outstanding Optical Performance - SIRUI Night Walker takes a revolutionary step in improving the optical performance at even the max aperture, achieving perfect sharpness, minimal focus breathing and well controlled aberration. | Premium Cine Body - The strong aluminum cine housing makes it sturdy yet portable in hand. It helps to protect inner optical elements while the minimum weight of each single lens is around only 500g, creating a new era of lightweight fast aperture lens. | Model: SIRUI 55mm T1.2 | Focus Length: 55mm | Frame: APS-C/S35 | Aperture: T1.2-T16 | Lens Structure: 11 elements in 10 groups | Aperture Blade: 12 | Minimum Focus Distance: 0.6m | Filter Spec: M67*0.75 | Rotation Angle of the Focus Ring: 270° | Max. Diameter(mm/inches): 79/3.11 | Diameter of the Focus Ring(mm/inches): 77.6/3.06 | Length(mm/inches): 84/3.3