An especially compact lens, the black Elmarit-TL 18 mm f/2.8 ASPH. is a 27mm equivalent wide-angle prime designed for APS-C-format Leica L-mount mirrorless cameras. Its pancake form factor measures just 0.8" thick, making it ideal for everyday use and travel applications. Its optical design features four aspherical surfaces to help suppress spherical aberrations and distortion for greater clarity and sharpness. Additionally, its autofocus design allows for full-time manual focus override for greater control when working with selective focus techniques.