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Standard prime lenses for Canon RF mount

6 standard prime options that fit Canon EOS R series (full-frame R5/R6/R8) and APS-C (R7/R10/R50) — the natural field of view — first prime territory. Every spec from the manufacturer's own product name and catalog.

Last verified 2026-09-01

Shooting a specific body? Per-camera fits: Canon EOS R · Canon EOS R1 · Canon EOS R10 · Canon EOS R100 · Canon EOS R3 · Canon EOS R5 · Canon EOS R5 Mark II · Canon EOS R50 · Canon EOS R6 · Canon EOS R6 Mark II · Canon EOS R7 · Canon EOS R8 · Canon EOS RP · Canon EOS R6 Mark III · Canon EOS R50 V · Canon EOS R6 V.

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FocalLensBuyMax apertureWeightTypeCoverageBest for
17-40mmSigma 17-40mm F1.8 DC | Art for Canon RF, BlackSigma 17-40mm f/1.8 DC ArtAmazon →f/1.8560 gzoomAPS-CEverydayStandard primeLow-lightPro standard zoom
24-50mmCanon EOS R8 Mirrorless Camera with RF 24-50mm f/4.5-6.3 is STM Lens, BlackCanon RF 24-50mm f/4.5-6.3 IS STMAmazon →f/4.5-6.3210 gzoomFull-frameStandard primeEverydayCompactBudget
30mmSigma 30mm F/1.4 DC DN Contemporary Lens for Canon RF Mount (APS-C)Sigma 30mm f/1.4 DC DN ContemporaryAmazon →f/1.4285 gprimeAPS-CStandard primeEverydayLow-light
50mmCanon RF50mm F 1.2L USM Standard Lens, BlackCanon RF 50mm f/1.2 L USMAmazon →f/1.2950 gprimeFull-framePortraitLow-lightWedding & eventStandard prime
50mmCanon RF50mm F1.4 L VCMCanon RF 50mm f/1.4 L VCMAmazon →f/1.4580 gprimeFull-framePortraitLow-lightStandard primeWedding & event
50mmCanon RF50mm F1.8 STM Lens, Mirrorless Lens, Fixed Focal Length, Compatible with EOS R Series Mirrorless Cameras, CompacCanon RF 50mm f/1.8 STMAmazon →f/1.8160 gprimeFull-frameStandard primeBudgetLow-light

Weight & weather sealing: which of these can you carry all day?

On long approaches the decision is often made by weight, not aperture. Manufacturer-published weights for 6 of the 6 lenses above:

LensWeightWeather sealing
Canon RF 50mm f/1.8 STM160gNone claimed
Canon RF 24-50mm f/4.5-6.3 IS STM210gNone claimed
Sigma 30mm f/1.4 DC DN Contemporary285gMount gasket only (Sigma publishes 285g for the RF mount (265g E / 275g X) — RF figure used)
Sigma 17-40mm f/1.8 DC Art560gWeather-sealed
Canon RF 50mm f/1.4 L VCM580gWeather-sealed
Canon RF 50mm f/1.2 L USM950gWeather-sealed

Packing light? The lightest here is the Canon RF 50mm f/1.8 STM at 160g. The lightest weather-sealed option is the Sigma 17-40mm f/1.8 DC Art at 560g.

Weights and sealing from each manufacturer's published spec sheet (per-lens source recorded in the dataset) · methodology

All Canon RF lenses: the full Canon RF index · other mounts: Sony E · Nikon Z · Fujifilm X · L-Mount · Micro Four Thirds.