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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Focal	Lens	Buy	Max aperture	Weight	Filter	Type	Coverage	Best for
17-40mm	Sigma 17-40mm f/1.8 DC Art	See price on Amazon	f/1.8	560 g	67mm	zoom	APS-C	EverydayStandard primeLow-lightPro standard zoom
24-50mm	Canon RF 24-50mm f/4.5-6.3 IS STM	See price on Amazon	f/4.5-6.3	210 g	58mm	zoom	Full-frame	Standard primeEverydayCompactBudget
30mm	Sigma 30mm f/1.4 DC DN Contemporary	See price on Amazon	f/1.4	285 g	—	prime	APS-C	Standard primeEverydayLow-light
50mm	Canon RF 50mm f/1.2 L USM	See price on Amazon	f/1.2	950 g	77mm	prime	Full-frame	PortraitLow-lightWedding & eventStandard prime
50mm	Canon RF 50mm f/1.4 L VCM	See price on Amazon	f/1.4	580 g	67mm	prime	Full-frame	PortraitLow-lightStandard primeWedding & event
50mm	Canon RF 50mm f/1.8 STM	See price on Amazon	f/1.8	160 g	43mm	prime	Full-frame	Standard 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:

Lens	Weight	Weather sealing
Canon RF 50mm f/1.8 STM	160g	None claimed
Canon RF 24-50mm f/4.5-6.3 IS STM	210g	None claimed
Sigma 30mm f/1.4 DC DN Contemporary	285g	Mount gasket only (Sigma publishes 285g for the RF mount (265g E / 275g X) — RF figure used)
Sigma 17-40mm f/1.8 DC Art	560g	Weather-sealed
Canon RF 50mm f/1.4 L VCM	580g	Weather-sealed
Canon RF 50mm f/1.2 L USM	950g	Weather-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.