Overview

The Canon EF 135mm F2L USM is renowned for exceptional sharpness, especially at f/2.8, with strong corner performance. It produces beautiful bokeh and subject isolation, though chromatic aberration and vignetting are present wide open. Build quality is solid with a metal barrel, compact and lightweight design, and fast, quiet autofocus. It lacks weather sealing and image stabilization. Best suited for portrait and wedding photographers needing discreet telephoto reach, but less ideal for tight spaces.