Canon EF 50mm F/1.4 USM vs Canon EF 85mm F/1.4L IS USM — Which Is Better?

The Canon EF 50mm F/1.4 USM and the Canon EF 85mm F/1.4L IS USM are both full-frame prime lenses for the Canon EOS system, so each mounts directly on any Canon EF camera body. Both provide autofocus and a dedicated manual focusing ring for full control. The 50mm arrived in 1993 as a standard prime, while the 85mm followed in 2017 as a longer lens carrying Canon's L designation.

The EF 50mm is the lighter carry by far: 290 g against 950 g for the EF 85mm. It is also much shorter, 51 mm versus 105.4 mm, and slimmer at 74 mm across versus 88.6 mm. That makes the 50mm the easy choice for a kit that stays small between shoots.

Both lenses accept front filters, but their threads differ: 58 mm on the 50mm and 77 mm on the 85mm. A filter you already own will therefore not screw directly onto the other lens.

Subject framing is the deciding difference: the 85mm focal length gives a tighter, flattering view for head-and-shoulder portraits, while the 50mm renders a standard field for walkaround, group and environmental shots. A key similarity is the F/1.4 maximum aperture, shared by both, so either lens opens equally wide for dim churches, receptions and evening streets.

The 50mm also focuses closer, reaching 45 cm against 85 cm on the 85mm. Its maximum magnification is 0.15x versus 0.12x, so small subjects such as flowers or product details fill more of the frame.

The EF 85mm holds the working-photographer advantages here. It offers weather sealing for outdoor sessions in rain or dust, and a fluorine coating that helps fingerprints and dust wipe off the front element. Its image stabilization is rated at 4 stops for handheld shooting in dim venues. The EF 50mm has none of these, and neither lens supports teleconverters.

The EF 85mm uses the more elaborate design, with 14 elements in 10 groups and one aspherical element to help correct aberrations. The EF 50mm keeps a simpler 7-element, 6-group construction that includes two elements for chromatic aberration reduction. Neither lens uses internal focusing or a floating element system.