Canon RF lens
Canon RF800mm F5.6 L IS USM
800 mm, f/5.6, made for full frame, stabilised. It mounts natively on 5 of our APS-C cameras; on the EOS R50 it frames like 1280 mm.
- 800 mm · 1280 mm equiv. on EOS R50
- f/5.6
- Drop-in filter
- 3,140 g
- Stabilised
- Weather-sealed
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On your camera
The view, the weight with the camera (battery and card included) and what the maker says about each pair. It is made for full-frame sensors and covers APS-C with room to spare.
| Camera | View (35 mm equiv.) | With the camera | Fit and maker's notes | Kit |
|---|---|---|---|---|
| Canon EOS R100 | 1280 mm | 3,496 g | Fits and works | |
| Canon EOS R50 | 1280 mm | 3,515 g | Fits and works | |
| Canon EOS R50 V | 1280 mm | 3,510 g | Fits and works | |
| Canon EOS R10 | 1280 mm | 3,569 g | Fits and works | |
| Canon EOS R7 | 1280 mm | 3,752 g | Fits and works |
What it frames
On the EOS R50, to scale
Other telephoto primes for Canon RF
The nearest in focal length, with the numbers that differ.
- Canon RF800mm F11 IS STM1280 mm equiv. · f/11 · 1,260 g (−1880 g) · 95 mmCompare
- Canon RF600mm F11 IS STM960 mm equiv. · f/11 · 930 g (−2210 g) · 82 mmCompare
- Canon RF600mm F4 L IS USM960 mm equiv. · f/4 · 3,090 g (−50 g) · Drop-in filterCompare
- Canon RF1200mm F8 L IS USM1920 mm equiv. · f/8 · 3,340 g (+200 g) · Drop-in filterCompare
- Canon RF400mm F2.8 L IS USM640 mm equiv. · f/2.8 · 2,890 g (−250 g) · Drop-in filterCompare
- Canon RF135mm F1.8 L IS USM216 mm equiv. · f/1.8 · 935 g (−2205 g) · 82 mmCompare
Questions about this lens
Which cameras does the Canon RF800mm F5.6 L IS USM fit?
5 APS-C cameras in our catalogue: EOS R100, EOS R50, EOS R50 V, EOS R10, EOS R7. It is made for full frame, so it also fits the full-frame cameras on its mount.
What does it frame like on APS-C?
800 mm frames like 1280 mm on the EOS R50 (1.6x).
What filter size does it take?
Drop-in filter.
Where these facts come from
Facts checked 9 Oct 2026 against the makers' specification pages. How we check
Size, weight, filter thread, close focus and magnification are Canon's published figures. We have not tested this lens; for image quality, read reviews from people who have.
Specifications
- Mount
- Canon RF
- Made for
- Full-frame sensors (covers APS-C too)
- Focal length
- 800 mm
- Maximum aperture
- f/5.6
- Lens stabilisation
- Yes
- Weather sealing
- Yes, per the maker
- Filter thread
- Drop-in filter
- Weight
- 3,140 g
- Size (diameter × length)
- 163 × 432 mm
- Closest focus
- Not published
- Maximum magnification
- Not published
- Autofocus
- Yes
- Announced
- 2022
- Note
- Drop-in filter