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Fast & Reliable Availability
We distribute our stock across multiple warehouses to ensure quick processing and delivery.
Need something urgently for Click & Collect?
If an item shows as in stock, please call us on 01442 292929 or email sales@proav.co.uk to confirm availability before visiting.

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Featuring a fast f/2.8 aperture right across the 100-300mm zoom range, Dual Nano USM motors for blazingly fast focus speeds along with new internal lens elements for incredible sharpness, enhanced optical coatings and a 5.5-stop Image Stabilizer (up to 6-stops with EOS R cameras with IBIS), the lightweight and compact super telephoto RF 100-300mm F2.8L IS USM zoom sets new standards for professionals looking for performance and flexibility.
A pro zoom with versatile telephoto power
Capture the fastest sports photography moments plus challenging news, and wildlife assignments with this lightweight and compact f/2.8 zoom, built to deliver a winning performance.
Blazingly fast, responsive and precise
Dual Nano USM motors offer fast, quiet focusing with extra control from a customisable lens control ring. Handheld shooting is easy too thanks to a 5.5-stop Optical Image Stabilizer1.
Incredible image quality that redefines a zoom
A moulded glass Aspheric lens, unusual in a super telephoto, along with UD and Fluorite elements work together to deliver incredible detail, with reduced chromatic aberration, ghosting and flare.
Creative control when you need it most
A 9-blade aperture renders highlights and out-of-focus areas beautifully while a 1.8m minimum focusing2 distance lets you capture close-up detail at any focal length.
Built for professionals
The L-series RF 100-300mm F2.8L IS USM will perform in whatever conditions you encounter thanks to advanced environmental sealing, shock resistance and white heat-blocking paint.
Add even more versatility with RF extenders
Boost the RF 100-300mm F2.8L IS USM up to 200-600mm f/5.6 with the RF 2x extender, or 140-420mm f/4 with the RF 1.4x extender with no sacrifice in focus speed or durability.
Key Features
| OPTICAL FEATURES | |
|---|---|
| Angle of View (Horzntl, Vertl, Diagnl) |
20° - 6° 50' 14° - 4° 35' 24° - 8° 15' |
| Lens construction (elements/groups) |
23/18 |
| Special optics | 1x Fluorite 4x UD 1x GMo aspherical |
| No. of diaphragm blades | 9 |
| Minimum aperture | 22 |
| Closest focusing distance (m) | 1.8m (constant) |
| Maximum magnification (x) | 0.06 (at 100mm) 0.16 (atr 300mm) |
| Control ring | Yes |
| Image stabilizer*1 No. Stops Lens OIS only |
5.5 |
| IBIS x OIS | 6 |
| AF actuator | Dual Nano USM |
| Coatings | ASC, Super Spectra |
| Fluorine coating | Front |
| PHYSICAL SPECIFICATIONS | |
| Dust/moisture resistance*2 | Yes |
| Exterior coating | Heat Shield |
| Filter diameter (mm) | 112 |
| Max. diameter x length (mm) | 128 x 323.4 |
| Weight (g) | 2590 |
| FOOTNOTES/DISCLAIMERS | |
| Footnotes/Disclaimers | *1 Tested under CIPA standards *2 Lenses with dust/moisture resistance are fitted with a rubber ring on the lens mount which may cause slight abrasion of the camera mount. This in no way effects either the lens or camera performance. |