Canon RF 100-500mm F4.5-7.1 L IS USM vs Canon RF 400mm F2.8 L IS USM
Key differences
- —The RF 100-500mm F4.5-7.1 L IS USM is 1520g lighter (1370g vs 2890g).
- —The RF 400mm F2.8 L IS USM is faster: f/2.8 vs f/4.5 (≈1.4 stops more light).
- —At launch the RF 100-500mm F4.5-7.1 L IS USM cost $9,300 less ($2,699 vs $11,999).
- —For close-ups the RF 100-500mm F4.5-7.1 L IS USM reaches 0.33× vs 0.17×.
- Mount
- Canon RF
- Canon RF
- Focal length
- 100–500mm
- 400mm
- Max aperture
- F4.5–7.1
- F2.8◆
- Weight
- 1,370g◆
- 2,890g
- Dimensions ⌀ × L
- 93.8 × 207.6mm
- 163.0 × 367.0mm
- Volume
- 1435 cm³◆
- 7658 cm³
- Density
- 0.95 g/cm³
- 0.38 g/cm³
- Filter thread
- ⌀77mm
- —
- Min focus
- 0.90m◆
- 2.50m
- Max magnification
- 0.33×◆
- 0.17×
- Elements / groups
- 20 / 14
- 17 / 13
- Aperture blades
- 9
- 9
- Focus drive
- Nano USM (x2)
- Ring USM
- Stabilisation
- Yes
- Yes
- Weather sealed
- Yes
- Yes
- Aperture ring
- —
- —
- Released
- 2020
- 2021
- MSRP (USD)
- $2,699◆
- $11,999
- Sharpness
- 9.0
- 9.7◆
- Bokeh Rendering
- 7.8
- 9.3◆
- Autofocus Speed
- 8.8
- 9.6◆
- Flare Resistance
- 8.4
- 9.0◆
- Build / Sealing
- 9.0
- 9.6◆
- Value / Size
- 7.6◆
- 5.8
Performance overlay
- RF 100-500mm F4.5-7.1 L IS USM
- RF 400mm F2.8 L IS USM
◆ marks the best value in a row. Scores are 0–10 editorial ratings.

