Canon RF20-50mm F4 L IS USM PZvsSigma 23mm F1.4 DC DN
RF20-50mm F4 L IS USM PZ
20-50mm / F4
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23mm F1.4 DC DN
23mm / F1.4
35mm equiv.
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Which to choose
When the RF20-50mm F4 L IS USM PZ suits you better
- Zoom rangeCovers 20-50mm in a single lens
- StabilizationHas stabilization
When the 23mm F1.4 DC DN suits you better
- Brightness3.0 stops brighter — better in low light and blurs the background more
- Weight75g lighter, so easier to carry
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
- RF20-50mm F4 L IS USM PZ98.4mm long × 79.9mm diameter
- 23mm F1.4 DC DN76.9mm long × 69mm diameter
Specifications compared
| Specification | Canon RF20-50mm F4 L IS USM PZ | Sigma 23mm F1.4 DC DN | Difference |
|---|---|---|---|
| Focal length (wide) | 20mm | 23mm | −3mm |
| Focal length (tele) | 50mm | 23mm | +27mm |
| Max aperture (wide) | F4 | F1.4 | 3.0 stops darker |
| Max aperture (tele) | F4 | F1.4 | 3.0 stops darker |
| Min aperture | F22 | — | No data |
| Min focus distance | 24cm | — | No data |
| Max magnification | 0.33× | — | No data |
| Aperture blades | 9blades | — | No data |
| Weight | 420g | 345g | +75g |
| Length | 98.4mm | 76.9mm | +21.5mm |
| Diameter | 79.9mm | 69mm | +10.9mm |
| Filter size | 67mm | 52mm | +15mm |
| Released | 2026 | 2024 | +2year |
| Stabilization | Yes | No | Yes |
| Weather sealing | Yes | Yes | — |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as RF20-50mm F4 L IS USM PZ relative to 23mm F1.4 DC DN.The highlighted cell is the better side for that specification.
Check prices
RF20-50mm F4 L IS USM PZ
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23mm F1.4 DC DN
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RF20-50mm F4 L IS USM PZ in detail23mm F1.4 DC DN in detailAll RF mount lenses