Canon's classic portrait prime, fast and affordable with ring USM autofocus.
The Canon EF 85mm f/1.8 USM was launched in 1992 and remains one of Canon's most popular portrait lenses more than 30 years later. Its combination of fast f/1.8 aperture, ring USM autofocus, and relatively low price made it the go-to portrait lens for Canon shooters who could not justify the f/1.2L or f/1.4L.
Optical quality is very good with sharp results from f/2.2 onwards. Wide open at f/1.8 there is mild softness and some chromatic fringing on high-contrast edges but the rendering is pleasing for portraits. Bokeh from the eight-blade aperture is smooth. Ring USM autofocus is fast and silent with full-time manual override. Build quality is solid metal and plastic.
Canon EF mount only, 58mm filter thread. Works on all EOS DSLRs and via adapter on RF mirrorless. The RF 85mm f/2 Macro IS STM is the native mirrorless alternative with IS and macro capability. The EF 85mm f/1.4L IS USM and EF 85mm f/1.2L II offer wider apertures at much higher prices.
Excellent value used. These lenses are robust with very few common issues. Check the USM motor, aperture blades, and front element. The lens has been in production so long that early copies may show wear on the focus ring rubber. One of the best value portrait lenses in any system.