These are the best Canon prime lenses, chosen for how they combine fast apertures, disciplined optics, reliable autofocus, and rugged builds that slot naturally into portrait, wedding, street, product, and low-light work on EOS R bodies (with EF classics adapting beautifully). Primes are about intent—clean rendering, confident subject separation, and consistent handling that makes framing instinctive. Start wide with storytellers: the RF 16mm f/2.8 STM is the pocket ultrawide for vlogs, travel, and astro on a budget; the RF 24mm f/1.8 Macro IS and RF 35mm f/1.8 Macro IS STM add hybrid utility with image stabilization, close-focus for food and product, and smooth STM drive for video; the featherweight RF 28mm f/2.8 STM pancake keeps an R body truly jacket-pocketable for all-day city shooting. At “normal” focal lengths, the RF 50mm f/1.2L USM is the flagship look—deep contrast, gorgeous bokeh, and fast, confident AF—while adapted EF 50mm options or third-party EF 50/1.4 “Art-style” primes deliver great value via the EF-EOS R adapter without sacrificing performance. Portrait shooters get two standouts: the RF 85mm f/1.2L USM (and DS variant) is the bokeh king for headshots and editorial work, and the RF 135mm f/1.8L IS USM brings modern stabilization, sticky AF, and flattering compression that’s killer for events and indoor sports sidelines. For macro and detail, the RF 100mm f/2.8L Macro IS USM adds 1.4× magnification and spherical aberration control for dialing in bokeh character—perfect for jewelry, cosmetics, and wedding details—while adapted EF 100mm f/2.8L IS remains a proven studio staple. If you live at the long end, the lightweight RF 600mm and 800mm f/11 primes are underrated wildlife and travel companions when the sun is up, while RF super-teles (400/2.8L, 600/4L) bring flagship AF and stabilization for pro action. EF legends still earn their place: the EF 35mm f/1.4L II for its crisp micro-contrast and low color fringing, the EF 85mm f/1.4L IS for stabilized portraits, and the EF 135mm f/2L for its classic, cinematic rendering—all adapt seamlessly and preserve that Canon color many DPs and photographers love. Image priorities for the best Canon primes are clear: low longitudinal CA so highlights don’t fringe, high micro-contrast for files that grade well, controlled focus breathing for natural pulls in video, and coatings that keep flare in check with backlight; USM drives are quiet and quick for stills, STM is extra smooth for focus transitions, and L-series weather sealing survives rain, dust, and venue chaos. For video, the 24/35 Macro IS primes stabilize hand-held B-roll, the 50/1.2L holds skin tones and speculars beautifully, and the 135/1.8L IS breathes modestly while tracking reliably; small front diameters on the non-L primes simplify ND and diffusion, and the Control Ring adapts exposure tweaks without hunting in menus. Workflow tips compound the gains: build two- or three-prime shells that match your style—24/50/135 for documentary and portraits, 35/85 for weddings and editorial, 16/35/85 for travel and night streets—add a macro for detail cutaways, and lean on the EF adapter to stretch budget with proven glass; keep a tiny STM prime for stealth or gimbal use, and set AF method to eye-detect with subject-based cases for tack-sharp results at f/1.2–f/1.8. Whether you’re chasing blue-hour street, filming interviews in tight rooms, crafting e-commerce flats, or shooting shallow-depth portraits with confident eye-AF, the best Canon prime lenses deliver crisp files, fast handling, and characterful rendering that make EOS R systems feel purpose-built for prime shooters.