Canon RF 100-500mm F4.5-7.1 L IS USM vs Canon RF 75-300mm F4-5.6
Key differences
- —The RF 75-300mm F4-5.6 is 863g lighter (507g vs 1370g).
- —The RF 75-300mm F4-5.6 is faster: f/4 vs f/4.5 (≈0.3 stops more light).
- —At launch the RF 75-300mm F4-5.6 cost $2,480 less ($219 vs $2,699).
- —For close-ups the RF 100-500mm F4.5-7.1 L IS USM reaches 0.33× vs 0.25×.
- Mount
- Canon RF
- Canon RF
- Focal length
- 100–500mm
- 75–300mm
- Max aperture
- F4.5–7.1
- F4–5.6◆
- Weight
- 1,370g
- 507g◆
- Dimensions ⌀ × L
- 93.8 × 207.6mm
- 71.2 × 146.1mm
- Volume
- 1435 cm³
- 582 cm³◆
- Density
- 0.95 g/cm³
- 0.87 g/cm³
- Filter thread
- ⌀77mm
- ⌀58mm
- Min focus
- 0.90m◆
- 1.50m
- Max magnification
- 0.33×◆
- 0.25×
- Elements / groups
- 20 / 14
- 13 / 9
- Aperture blades
- 9◆
- 7
- Focus drive
- Nano USM (x2)
- DC Motor
- Stabilisation
- Yes
- —
- Weather sealed
- Yes
- —
- Aperture ring
- —
- —
- Released
- 2020
- 2025
- MSRP (USD)
- $2,699
- $219◆
- Sharpness
- 9.0◆
- 6.0
- Bokeh Rendering
- 7.8◆
- 6.5
- Autofocus Speed
- 8.8◆
- 5.6
- Flare Resistance
- 8.4◆
- 6.3
- Build / Sealing
- 9.0◆
- 5.8
- Value / Size
- 7.6
- 7.8◆
Performance overlay
- RF 100-500mm F4.5-7.1 L IS USM
- RF 75-300mm F4-5.6
◆ marks the best value in a row. Scores are 0–10 editorial ratings.

