Canon RF15-30mm F4.5-6.3 IS STMvsCanon RF20mm F1.4 L VCM
RF15-30mm F4.5-6.3 IS STM
15-30mm / F4.5-6.3
—
RF20mm F1.4 L VCM
20mm / F1.4
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Which to choose
When the RF15-30mm F4.5-6.3 IS STM suits you better
- Weight129g lighter, so easier to carry
- Close focusFocuses as close as 13cm
- Zoom rangeCovers 15-30mm in a single lens
- StabilizationHas stabilization
When the RF20mm F1.4 L VCM suits you better
- Brightness3.4 stops brighter — better in low light and blurs the background more
- Weather sealingHas weather sealing
These points are derived mechanically from the numbers. How a lens actually renders does not show up in specifications, so look at samples before deciding.
Size compared
- RF15-30mm F4.5-6.3 IS STM88.4mm long × 76.6mm diameter
- RF20mm F1.4 L VCM99.3mm long × 76.5mm diameter
Specifications compared
| Specification | Canon RF15-30mm F4.5-6.3 IS STM | Canon RF20mm F1.4 L VCM | Difference |
|---|---|---|---|
| Focal length (wide) | 15mm | 20mm | −5mm |
| Focal length (tele) | 30mm | 20mm | +10mm |
| Max aperture (wide) | F4.5 | F1.4 | 3.4 stops darker |
| Max aperture (tele) | F6.3 | F1.4 | 4.3 stops darker |
| Min aperture | F22 | F16 | +6.0 |
| Min focus distance | 13cm | 20cm | −0.07m |
| Max magnification | 0.52× | 0.19× | +0.33x |
| Aperture blades | 7blades | 11blades | −4blades |
| Weight | 390g | 519g | −129g |
| Length | 88.4mm | 99.3mm | −10.9mm |
| Diameter | 76.6mm | 76.5mm | +0.1mm |
| Filter size | 67mm | 67mm | — |
| Released | 2022 | 2025 | −3year |
| Stabilization | Yes | No | Yes |
| Weather sealing | No | Yes | No |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as RF15-30mm F4.5-6.3 IS STM relative to RF20mm F1.4 L VCM.The highlighted cell is the better side for that specification.
Check prices
RF15-30mm F4.5-6.3 IS STM
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RF20mm F1.4 L VCM
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RF15-30mm F4.5-6.3 IS STM in detailRF20mm F1.4 L VCM in detailAll RF mount lenses