Designed for the digital cinema market, the Leica Summicron-C 18mm Lens (C for cinema) features a stainless steel PL mount and provides a smaller, lighter, albeit slower option to the renowned Summilux-C series of lenses. The 18mm focal length is a common choice for a wide angle lens in the Super 35 format as it provides a strong wide-angle effect without extreme distortion.
The small size of the lens makes it suitable not only for regular production but also for stabilized rigs, aerial cinematography, and stereoscopic 3D capture. Projecting a useable image circle of 36mm in diameter, it is compatible with a variety of cameras that have sensors that are slightly larger than Super 35. The T2.0 maximum aperture is consistent among the range, so there is no concern about exposure variations when cutting between Summicron-C lenses. Each lens incorporates geared focus and iris control rings, which share the same position, so swapping lenses can be done without having to adjust your follow focus or lens control system.