Sony FE 85mm F1.8 Lens There's nothing like the sharpness & smooth bokeh of a well-designed mid-range telephoto prime lens for portraiture, & the SEL85F18 is a standout choice. It features a compact, lightweight design for mobility, with high-performance optics & a large F1.8 maximum aperture that deliver outstanding image quality. An excellent second lens for both full-frame & APS-C camera users. ED glass for chromatic aberration compensation, a 9-blade circular aperture, & carefully controlled spherical aberration contribute to superb sharpness & smooth bokeh. A double linear motor system directly drives the lens's focus mechanism without intervening gears for precise, quiet operation that is ideal for movies as well as stills. The main features are: For full-frame Sony E-mount cameras. 9-blade diaphragm Dust-and moisture resistant Takes 67mm filters Mid-range telephoto prime ED glass for chromatic aberration compensation Circular 9-blade aperture for beautiful defocus effect Linear motor for precise, quiet focusing