Canon RF 10-20mm F4 L IS STM vs Canon RF 7-14mm F2.8-3.5 L Fisheye STM
Key differences
- —The RF 7-14mm F2.8-3.5 L Fisheye STM is 94g lighter (476g vs 570g).
- —The RF 7-14mm F2.8-3.5 L Fisheye STM is faster: f/2.8 vs f/4 (≈1.0 stops more light).
- —At launch the RF 7-14mm F2.8-3.5 L Fisheye STM cost $400 less ($1,899 vs $2,299).
- —For close-ups the RF 7-14mm F2.8-3.5 L Fisheye STM reaches 0.35× vs 0.12×.
- Mount
- Canon RF
- Canon RF
- Focal length
- 10–20mm
- 7–14mm
- Max aperture
- F4
- F2.8–3.5◆
- Weight
- 570g
- 476g◆
- Dimensions ⌀ × L
- 83.7 × 112.0mm
- 76.5 × 109.4mm
- Volume
- 616 cm³
- 503 cm³◆
- Density
- 0.92 g/cm³
- 0.95 g/cm³
- Filter thread
- —
- —
- Min focus
- 0.25m
- 0.15m◆
- Max magnification
- 0.12×
- 0.35×◆
- Elements / groups
- 16 / 12
- 16 / 11
- Aperture blades
- 9
- 9
- Focus drive
- Lead-screw STM
- Leadscrew-type STM
- Stabilisation
- Yes
- —
- Weather sealed
- Yes
- Yes
- Aperture ring
- —
- —
- Released
- 2023
- 2026
- MSRP (USD)
- $2,299
- $1,899◆
- Sharpness
- 8.6
- 8.7◆
- Bokeh Rendering
- 6.8
- 6.8
- Autofocus Speed
- 8.4◆
- 8.2
- Flare Resistance
- 7.6
- 8.0◆
- Build / Sealing
- 9.0
- 9.0
- Value / Size
- 6.8
- 6.8
Performance overlay
- RF 10-20mm F4 L IS STM
- RF 7-14mm F2.8-3.5 L Fisheye STM
◆ marks the best value in a row. Scores are 0–10 editorial ratings.