Canon RF 100-400mm F5.6-8 IS USM vs Canon RF 200-800mm F6.3-9 IS USM
Key differences
- —The RF 100-400mm F5.6-8 IS USM is 1415g lighter (635g vs 2050g).
- —The RF 100-400mm F5.6-8 IS USM is faster: f/5.6 vs f/6.3 (≈0.3 stops more light).
- —At launch the RF 100-400mm F5.6-8 IS USM cost $1,250 less ($649 vs $1,899).
- —For close-ups the RF 100-400mm F5.6-8 IS USM reaches 0.41× vs 0.25×.
- Mount
- Canon RF
- Canon RF
- Focal length
- 100–400mm
- 200–800mm
- Max aperture
- F5.6–8◆
- F6.3–9
- Weight
- 635g◆
- 2,050g
- Dimensions ⌀ × L
- 79.5 × 164.7mm
- 102.3 × 314.1mm
- Volume
- 818 cm³◆
- 2582 cm³
- Density
- 0.78 g/cm³
- 0.79 g/cm³
- Filter thread
- ⌀67mm
- ⌀95mm
- Min focus
- 0.88m
- 0.80m◆
- Max magnification
- 0.41×◆
- 0.25×
- Elements / groups
- 12 / 9
- 17 / 11
- Aperture blades
- 9
- 9
- Focus drive
- Nano USM
- Nano USM
- Stabilisation
- Yes
- Yes
- Weather sealed
- —
- Yes
- Aperture ring
- —
- —
- Released
- 2021
- 2023
- MSRP (USD)
- $649◆
- $1,899
- Sharpness
- 7.6
- 8.0◆
- Bokeh Rendering
- 6.4
- 7.8◆
- Autofocus Speed
- 8.0
- 8.3◆
- Flare Resistance
- 7.8◆
- 7.6
- Build / Sealing
- 6.8
- 8.2◆
- Value / Size
- 9.3◆
- 9.0
Performance overlay
- RF 100-400mm F5.6-8 IS USM
- RF 200-800mm F6.3-9 IS USM
◆ marks the best value in a row. Scores are 0–10 editorial ratings.

