Best wide-angle lenses for the Canon EOS R100
16 wide-angle lenses that fit the Canon EOS R100 (Canon RF mount) — landscapes, architecture, astro and interiors. Sorted brightest-aperture first; every spec from the manufacturer's catalog.
Start with the Canon RF 14mm f/1.4 L VCM. At f/1.4 it is the brightest of the 16 wide-angle Canon RF lenses that fit the Canon EOS R100 — the full comparison is below.
It is a full-frame lens. It fits and shoots at full resolution, and the glass often carries over if you move to a full-frame body later — but for the same framing it is larger, heavier and dearer than a lens built for this sensor. The brightest APS-C option here is Sigma 16mm f/1.4 DC DN Contemporary at f/1.4.
Check the Canon RF 14mm f/1.4 L VCM price on Amazon →
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. That works against you here: the widest option, the Sigma 10-18mm f/2.8 DC DN Contemporary, frames like 16mm — not as wide as its marked number suggests. For a genuinely wide view on the Canon EOS R100 you want a lens marked around 15mm or shorter.
| Lens | Marked | Frames like, on the Canon EOS R100 |
|---|---|---|
| Canon RF 14mm f/1.4 L VCM | 14mm | 22mm |
| Sigma 16mm f/1.4 DC DN Contemporary | 16mm | 26mm |
| Canon RF 20mm f/1.4 L VCM | 20mm | 32mm |
| Canon RF 24mm f/1.4 L VCM | 24mm | 38mm |
| Canon RF 24mm f/1.8 Macro IS STM | 24mm | 38mm |
| Sigma 10-18mm f/2.8 DC DN Contemporary | 10-18mm | 16–29mm |
| Tamron 11-20mm f/2.8 Di III-A RXD | 11-20mm | 18–32mm |
| Canon RF 15-35mm f/2.8 L IS USM | 15-35mm | 24–56mm |
| Canon RF 16-28mm f/2.8 IS STM | 16-28mm | 26–45mm |
| Canon RF 16mm f/2.8 STM | 16mm | 26mm |
| Canon RF 10-20mm f/4 L IS STM | 10-20mm | 16–32mm |
| Canon RF 14-35mm f/4 L IS USM | 14-35mm | 22–56mm |
| Canon RF-S 14-30mm f/4-6.3 IS STM PZ | 14-30mm | 22–48mm |
| Canon RF 20-50mm f/4 L IS USM PZ | 20-50mm | 32–80mm |
| Canon RF-S 10-18mm f/4.5-6.3 IS STM | 10-18mm | 16–29mm |
| Canon RF 15-30mm f/4.5-6.3 IS STM | 15-30mm | 24–48mm |
Weight & weather sealing on the Canon EOS R100
On long approaches the decision is often made by weight, not aperture. Published weights for 15 of the 16 lenses above (the other 1 has no verified weight in our dataset yet — omitted, never estimated):
| Lens | Weight | Weather sealing |
|---|---|---|
| Canon RF-S 10-18mm f/4.5-6.3 IS STM | 150g | None claimed |
| Canon RF 16mm f/2.8 STM | 165g | None claimed |
| Canon RF-S 14-30mm f/4-6.3 IS STM PZ | 181g | None claimed |
| Canon RF 24mm f/1.8 Macro IS STM | 270g | None claimed |
| Sigma 10-18mm f/2.8 DC DN Contemporary | 270g | Mount gasket only |
| Tamron 11-20mm f/2.8 Di III-A RXD | 340g | Weather-sealed |
| Canon RF 15-30mm f/4.5-6.3 IS STM | 390g | None claimed |
| Sigma 16mm f/1.4 DC DN Contemporary | 415g | Mount gasket only |
| Canon RF 16-28mm f/2.8 IS STM | 445g | Weather-sealed (dust/drip resistance Canon states is L-equivalent at rings and mount; switches not sealed) |
| Canon RF 24mm f/1.4 L VCM | 515g | Weather-sealed |
| Canon RF 20mm f/1.4 L VCM | 519g | Not verified (weight from the Canon RF lens-mount list table; sealing not stated on the source page) |
| Canon RF 14-35mm f/4 L IS USM | 540g | Weather-sealed |
| Canon RF 10-20mm f/4 L IS STM | 570g | Weather-sealed |
| Canon RF 14mm f/1.4 L VCM | 578g | Weather-sealed |
| Canon RF 15-35mm f/2.8 L IS USM | 840g | Weather-sealed |
Packing light? The lightest here is the Canon RF-S 10-18mm f/4.5-6.3 IS STM at 150g. The lightest weather-sealed option is the Tamron 11-20mm f/2.8 Di III-A RXD at 340g.
FAQ
What is the best wide-angle lens for the Canon EOS R100?
Canon RF 14mm f/1.4 L VCM (14mm f/1.4) is the standout wide-angle option that fits the Canon EOS R100. 16 wide-angle Canon RF lenses fit in total — compare them below.
Do these wide-angle 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 wide-angle lens for the Canon EOS R100?
The Canon RF-S 10-18mm f/4.5-6.3 IS STM at 150g (manufacturer-published weight). The lightest weather-sealed option is the Tamron 11-20mm f/2.8 Di III-A RXD at 340g. Weights for 15 of the 16 lenses on this page are in the weight table above.
Already own the Canon EOS R100, shopping for a spare or an upgrade? Canon EOS R100 on Amazon →
All lenses for the Canon EOS R100 · the same use across mounts: Wide-angle lenses for Canon RF · all cameras