Canon RF 100-400mm f/5.6-8 IS USM

FOCAL 100-400mmAPERTURE f/5.6-8WEIGHT 635gFILTER 67mm

Wildlife & animalsSports & actionStabilised

New ≈£649

Used at MPB*£534–639

Overview

The Canon RF 100-400mm f/5.6-8 IS USM is a full frame 100-400mm f/5.6-8 zoom lens for the Canon RF / RF-S mount. It weighs about 635g and takes 67mm filters, with built-in stabilisation.

It's a strong choice for wildlife & animals, sports & action. As much reach as you can carry: 400–600mm equivalent or more.

In our database it fits 16 camera bodies natively. Approximate new price is £649; used at MPB it sells for £534–639 depending on condition and mount (checked 5 November 2026).

Specifications

Brand	Canon
Mounts	Canon RF / RF-S (First-party)
Coverage	Full frame
Focal length	100-400mm
Equivalent on Full frame	100-400mm
Equivalent on APS-C (×1.5)	150-600mm
Maximum aperture	f/5.6-8
Focus	Autofocus
Stabilisation	Optical
Weather sealing	No
Weight	≈635 g
Filter thread	67 mm
Approx. new price	£649
Used at MPB (Canon RF / RF-S)	£534–639

Compatible camera bodies

16 native

Alternatives to compare

Tamron 28-300mm f/4-7.1 Di III VC VXD28-300mm · f/4-7.1 · 610g · E≈£799 new · used from £589

Tamron 70-300mm f/4.5-6.3 Di III RXD70-300mm · f/4.5-6.3 · 545g · E, Z≈£499 new · used from £299

Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary100-400mm · f/5-6.3 · 1160g · EF, F≈£799 new · used from £434

Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary150-600mm · f/5-6.3 · 1930g · EF, F≈£899 new · used from £304

Where to buy

*Used prices on this site come from MPB on 5 November 2026. MPB only lists what it has bought in, so "None listed" means none in their stock that day, not that Canon RF 100-400mm f/5.6-8 IS USM is hard to find. Check these trusted UK dealers too.

MPB ↗UsedOnline used specialist with condition grading and a 12-month warranty. Prices on this site are MPB snapshots.Wex Photo Video ↗New & usedOne of the largest UK photo retailers: official UK stock, a big used department and trade-ins.Park Cameras ↗New & usedSpecialist with stores in West Sussex and London; official UK stock.London Camera Exchange ↗New & usedHigh-street chain across UK towns: inspect used gear in person.Clifton Cameras ↗NewAuthorised UK dealer for Canon, Sony, Nikon and more, with UK warranties.Cotswold Cameras ↗New · grey importCheaper parallel imports. No UK manufacturer warranty; store-backed guarantee instead.

See example photos

Real-world shots taken with the Canon RF 100-400mm f/5.6-8 IS USM lens. Results are searches on each site, so check the camera or lens listed in each photo's details.

Flickr: most interesting Flickr groups Wikimedia Commons “Taken with” category 500px

Frequently asked questions

Which cameras is the Canon RF 100-400mm f/5.6-8 IS USM compatible with?

It's available for Canon RF / RF-S. Native bodies here include Canon EOS R5 Mark II, Canon EOS R3, Canon EOS R5, Canon EOS R10, Canon EOS R7, Canon EOS R8.

Is the Canon RF 100-400mm f/5.6-8 IS USM weather sealed?

No, it has no weather sealing; protect it in rain.

Does the Canon RF 100-400mm f/5.6-8 IS USM have image stabilisation?

Yes, it has optical stabilisation, which helps on bodies without IBIS.

What is the Canon RF 100-400mm f/5.6-8 IS USM best for?

Wildlife & animals, Sports & action. As much reach as you can carry: 400–600mm equivalent or more.