Best pro standard zoom lenses for the Canon EOS R100

Canon EOS R100 · 2023 · 24.1 MP APS-C · 356 g · no IBIS — stabilisation is lens-only

7 pro standard zoom lenses that fit the Canon EOS R100 (Canon RF mount) — the f/2.8 workhorse zooms professionals build kits around. Sorted brightest-aperture first; every spec from the manufacturer's catalog.

Start with the Sigma 17-40mm f/1.8 DC Art. At f/1.8 it is the brightest of the 7 pro standard zoom Canon RF lenses that fit the Canon EOS R100 — the full comparison is below.

Last verified 2026-09-01 · Canon RF mount · Canon APS-C body · 1.6× crop factor

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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	Check price →	f/1.8	560 g	67mm	zoom	APS-C	EverydayStandard primeLow-lightPro standard zoom
28-70mm	Canon RF 28-70mm f/2 L USM	Check price →	f/2	1430 g	95mm	zoom	Full-frame	Pro standard zoomWedding & eventLow-light
15-35mm	Canon RF 15-35mm f/2.8 L IS USM	Check price →	f/2.8	840 g	82mm	zoom	Full-frame	Wide-angleLandscapePro standard zoom
17-70mm	Tamron 17-70mm f/2.8 Di III-A VC RXD	Check price →	f/2.8	530 g	67mm	zoom	APS-C	EverydayTravelPro standard zoom
18-50mm	Sigma 18-50mm f/2.8 DC DN Contemporary	Check price →	f/2.8	290 g	—	zoom	APS-C	Pro standard zoomEverydayBudget pro
24-70mm	Canon RF 24-70mm f/2.8 L IS USM	Check price →	f/2.8	900 g	82mm	zoom	Full-frame	Pro standard zoomEverydayWedding & event
28-70mm	Canon RF 28-70mm f/2.8 IS STM	Check price →	f/2.8	495 g	67mm	zoom	Full-frame	Pro standard zoomEverydayWedding & event

One limit of this table: it lists only Canon RF lenses that mount natively on the Canon EOS R100 — lenses fitted through an adapter are not included here. See which mounts adapt to which.

What these focal lengths actually give you on the Canon EOS R100

The Canon EOS R100 has an APS-C sensor, so it sees a 1.6× crop of what each lens projects (Canon's APS-C is 1.6×, not the 1.5× used by Sony, Nikon and Fujifilm). Every focal length below therefore frames 1.6× tighter than its marked number. A 50mm on the Canon EOS R100 frames like 80mm, not the "normal" view its marked number implies.

Effective focal lengths are the marked focal length × the 1.6× sensor crop factor — the field of view, not a change in the lens itself. Aperture and depth of field are unaffected.

Weight & weather sealing on the Canon EOS R100

On long approaches the decision is often made by weight, not aperture. Published weights for 7 of the 7 lenses above:

Packing light? The lightest here is the Sigma 18-50mm f/2.8 DC DN Contemporary at 290g. The lightest weather-sealed option is the Tamron 17-70mm f/2.8 Di III-A VC RXD at 530g.

Weights and sealing as published for each lens — 5 from the manufacturer's own spec page, 2 from a published lens database or review quoting the maker's figure (per-lens source recorded in the dataset) · methodology

FAQ

What is the best pro standard zoom lens for the Canon EOS R100?
Sigma 17-40mm f/1.8 DC Art (17-40mm f/1.8) is the standout pro standard zoom option that fits the Canon EOS R100. 7 pro standard zoom Canon RF lenses fit in total — compare them below.

Do these pro standard zoom lenses fit the Canon EOS R100?
Yes — every lens here is a Canon RF mount lens, so it fits the Canon EOS R100 and covers its APS-C sensor.

What is the lightest pro standard zoom lens for the Canon EOS R100?
The Sigma 18-50mm f/2.8 DC DN Contemporary at 290g (manufacturer-published weight). The lightest weather-sealed option is the Tamron 17-70mm f/2.8 Di III-A VC RXD at 530g. Weights for 7 of the 7 lenses on this page are in the weight table above.

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All lenses for the Canon EOS R100 · the same use across mounts: Pro standard zoom lenses for Canon RF · all cameras

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