Compact Portrait-Length Prime. The Panasonic Lumix S 85mm f/1.8’s short-telephoto focal length makes it a particularly great option for portraiture. Its reasonably bright f/1.8 aperture and rounded nine-blade diaphragm produce pleasing bokeh and smooth defocus gradation. Using an APS-C camera? You’ll get a 127.5mm focal length.

L-Mount Alliance. This wide-diameter lens mount is a joint collaboration between Leica, Panasonic, and Sigma that’s focused on a line of premium cameras and lenses in a mirrorless format. At 51.6mm mount diameter and just 20mm flange distance, the L-mount is well-suited for fast-aperture full-frame optics with compact dimensions.

Linear Autofocus System. The 85mm f/1.8’s autofocus system uses a linear motor to provide fast, accurate, nearly silent performance for still and video use. You can use the AF/MF switch to easily toggle between autofocus and manual focus modes.

Premium Optics. This lens’s eight-group/nine-element optical formula features two extra-low dispersion elements to reduce chromatic aberrations and color fringing, producing sharp, clear, color-accurate images.

High-Quality Build. The lens barrel’s construction provides a solid, yet lightweight feel, while its splash-. dust-, and freeze-proof design lets you work in inclement weather conditions down to -14° with confidence.