Best telephoto lenses for the Canon EOS R100
18 telephoto lenses that fit the Canon EOS R100 (Canon RF mount) — reach for sports, wildlife and compressed portraits. Sorted brightest-aperture first; every spec from the manufacturer's catalog.
Start with the Canon RF 135mm f/1.8 L IS USM. At f/1.8 it is the brightest of the 18 telephoto Canon RF lenses that fit the Canon EOS R100 — the full comparison is below.
It is a full-frame lens — which for telephoto is often the point: the Canon EOS R100's crop turns its reach into 216mm of effective framing. The trade is size, weight and price. If you would rather stay small and matched to the sensor, the brightest APS-C option here is Sigma 16-300mm f/3.5-6.7 DC OS Contemporary at f/3.5-6.7.
Showing 18 of 18 lenses
Stabilisation uses a marker in the manufacturer model name; no marker is not a negative claim. Price filters use a current price when available.
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 in your favour here: the Canon RF 1200mm f/8 L IS USM reaches 1920mm of effective reach, which on a full-frame body would need a longer, heavier and far more expensive lens.
| Lens | Marked | Frames like, on the Canon EOS R100 |
|---|---|---|
| Canon RF 135mm f/1.8 L IS USM | 135mm | 216mm |
| Canon RF 70-200mm f/2.8 L IS USM | 70-200mm | 112–320mm |
| Canon RF 70-200mm f/2.8 L IS USM Z | 70-200mm | 112–320mm |
| Canon RF 100-300mm f/2.8 L IS USM | 100-300mm | 160–480mm |
| Canon RF 400mm f/2.8 L IS USM | 400mm | 640mm |
| Sigma 16-300mm f/3.5-6.7 DC OS Contemporary | 16-300mm | 26–480mm |
| Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD | 18-300mm | 29–480mm |
| Canon RF 70-200mm f/4 L IS USM | 70-200mm | 112–320mm |
| Canon RF 75-300mm f/4-5.6 DC | 75-300mm | 120–480mm |
| Canon RF 600mm f/4 L IS USM | 600mm | 960mm |
| Canon RF 100-500mm f/4.5-7.1 L IS USM | 100-500mm | 160–800mm |
| Canon RF-S 55-210mm f/5-7.1 IS STM | 55-210mm | 88–336mm |
| Canon RF 100-400mm f/5.6-8 IS USM | 100-400mm | 160–640mm |
| Canon RF 800mm f/5.6 L IS USM | 800mm | 1280mm |
| Canon RF 200-800mm f/6.3-9 IS USM | 200-800mm | 320–1280mm |
| Canon RF 1200mm f/8 L IS USM | 1200mm | 1920mm |
| Canon RF 600mm f/11 IS STM | 600mm | 960mm |
| Canon RF 800mm f/11 IS STM | 800mm | 1280mm |
Weight & weather sealing on the Canon EOS R100
On long approaches the decision is often made by weight, not aperture. Published weights for 18 of the 18 lenses above:
Packing light? The lightest here is the Canon RF-S 55-210mm f/5-7.1 IS STM at 270g. The lightest weather-sealed option is the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary at 625g.
FAQ
What is the best telephoto lens for the Canon EOS R100?
Canon RF 135mm f/1.8 L IS USM (135mm f/1.8) is the standout telephoto option that fits the Canon EOS R100. 18 telephoto Canon RF lenses fit in total — compare them below.
Do these telephoto 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 telephoto lens for the Canon EOS R100?
The Canon RF-S 55-210mm f/5-7.1 IS STM at 270g (manufacturer-published weight). The lightest weather-sealed option is the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary at 625g. Weights for 18 of the 18 lenses on this page are in the weight table above.
Already own the Canon EOS R100, shopping for a spare or an upgrade? See price on Amazon
Other uses on the Canon EOS R100: Wide-angle (15) Vlogging (6) Travel (18) Landscape (10) Astrophotography (10) Low-light (19) Budget (11) Pro standard zoom (7) Street (9) Everyday (20) Standard prime (6) Wedding & event (12) Macro (5) Portrait (11) Sports & action (15) Wildlife (10)
All lenses for the Canon EOS R100 · the same use across mounts: Telephoto lenses for Canon RF · all cameras