Canon EF 35mm f/1.4L II USM

Shoot a chrome bumper or a backlit branch wide open and look at the out-of-focus highlights. On most fast 35s they bloom with a green fringe behind the focus plane and a magenta one in front. On this one they come back clean. That is the BR optics element doing its job, and it is the reason this lens exists.

Canon built the EF 35mm f/1.4L II USM around a Blue Spectrum Refractive element, an organic material cemented between glass that bends blue wavelengths hard enough to drag axial chromatic aberration back in line. It was the first lens anywhere to use it. The original 35L from 1998 was a fine reportage optic that went soft and fringy at f/1.4; the II is sharp from wide open, with a color-corrected look that sets it apart from the Sigma 35mm Art people cross-shop it against.

Rendering is high-contrast and bitingly sharp without tipping into clinical. Bokeh stays round and smooth through the middle distances, and skin keeps its color because the green-magenta fringing that longitudinal CA sneaks into hair and jewelry just is not there. Field curvature is mild. Flare holds up well for a lens this complex, though aim it straight into a low sun and you will catch some veiling.

Thirty-five at f/1.4 is the reportage and environmental-portrait focal length, and that is where this lens lives: weddings, editorial, available-light documentary work where you want one body to your eye in a dim room and enough separation to lift a face off its background. It is also a serious Milky Way lens, because the corrected aberrations tame the coma that turns corner stars into little comets on lesser glass.

The honest weakness is mass. At roughly 760 grams it runs well over the original and sits heavy on the front of a body all day. It is not cheap either, and the Sigma Art gets most of the way there on sharpness for far less, which is the argument every buyer has with themselves.

With Canon's mount shifted to RF, clean EF copies now turn up used at prices that finally make sense, and on a DSLR or an adapter this is still one of the best 35s the system ever got. Working wide open in a dark church or on a night street, meter for the shadows you actually care about; Zone Light Meter reads at f/1.4 so you can place that exposure where the shallow depth is doing the work, instead of letting an averaged reading crush the frame.