RF 100-300mm F2.8 L IS USM
- 100-300mm
- f/2.8
- Telephoto Zoom
- Stabilized
- 2590 g
- Min focus 1.8 m
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Quick answer
Telephoto zoom with a constant f/2.8 aperture across 100-300mm and image stabilization, introduced in 2023. It is large and aimed at sports and wildlife professionals.
Pros
- Constant f/2.8
- Image stabilization
- Takes RF extenders
- Weather-sealed L build
Cons
- Weighs about 2.6kg
- Large 112mm filter thread
- Minimum focus of 1.8m
Verdict
One lens in place of a 70-200mm plus a 300mm prime, with the weight to match.
About this lens
Canon RF 100-300mm F2.8 L IS USM: a fast telephoto zoom lens with a 100-300mm focal length and a maximum aperture of f/2.8, made for Canon RF mount cameras, from the Canon L series with Image Stabilizer and ultrasonic-motor autofocus. The range suits sports, wildlife, events and portraits.
Canon RF 100-300mm F2.8 L IS USM specifications
- Brand
- Canon
- Mount
- Canon RF
- Focal length
- 100-300mm
- Maximum aperture
- f/2.8
- Lens type
- Telephoto Zoom
- Format coverage
- full-frame
- Released
- 2023
- Optical construction
- 23 elements in 18 groups
- Aperture blades
- 9
- Image stabilization
- Yes
- Autofocus motor
- USM
- Minimum focus distance
- 1.8 m
- Maximum magnification
- 0.06x
- Filter thread
- 112 mm
- Weight
- 2590 g
- Length
- 323.4 mm
- Diameter
- 128 mm
Specification source: global.canon
What can you shoot with the Canon RF 100-300mm F2.8 L IS USM?
- Sports
- Wildlife
- Field events
Its bright maximum aperture handles indoor and evening light reasonably well.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 100–300mm | 6.9–20.4° | 8.2–24.4° |
| APS-C | 1.6x | 160–480mm | 4.3–12.8° | 5.2–15.4° |
Frequently asked questions
How heavy is the Canon RF 100-300mm F2.8 L IS USM?
It weighs about 2.59kg. A monopod is advisable for long sessions.
Does it work with extenders?
Yes, Canon's RF extenders are compatible. The 1.4x gives 140-420mm at f/4.
Is the lens weather sealed?
Yes, it is an L-series lens with dust and weather resistance. That suits outdoor sports and wildlife work.
Alternatives for Canon RF from other brands
All Canon RF lensesSame mount, overlapping focal range, closest maximum aperture first.
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