Canon RF24-50mm F4.5-6.3 IS STMvsSigma 18-50mm F2.8 DC DN
RF24-50mm F4.5-6.3 IS STM
24-50mm / F4.5-6.3
—
18-50mm F2.8 DC DN
18-50mm / F2.8
27-75mm equiv.
—
Which to choose
When the RF24-50mm F4.5-6.3 IS STM suits you better
- Weight90g lighter, so easier to carry
- StabilizationHas stabilization
When the 18-50mm F2.8 DC DN suits you better
- Brightness1.4 stops brighter — better in low light and blurs the background more
- Zoom rangeCovers 18-50mm in a single lens
- 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
- RF24-50mm F4.5-6.3 IS STM58mm long × 69.6mm diameter
- 18-50mm F2.8 DC DN74.5mm long × 69.2mm diameter
Specifications compared
| Specification | Canon RF24-50mm F4.5-6.3 IS STM | Sigma 18-50mm F2.8 DC DN | Difference |
|---|---|---|---|
| Focal length (wide) | 24mm | 18mm | +6mm |
| Focal length (tele) | 50mm | 50mm | — |
| Max aperture (wide) | F4.5 | F2.8 | 1.4 stops darker |
| Max aperture (tele) | F6.3 | F2.8 | 2.3 stops darker |
| Min aperture | F22 | — | No data |
| Min focus distance | 30cm | — | No data |
| Max magnification | 0.19× | — | No data |
| Aperture blades | 7blades | — | No data |
| Weight | 210g | 300g | −90g |
| Length | 58mm | 74.5mm | −16.5mm |
| Diameter | 69.6mm | 69.2mm | +0.4mm |
| Filter size | 58mm | 55mm | +3mm |
| Released | 2023 | 2024 | −1year |
| Stabilization | Yes | No | Yes |
| Weather sealing | No | Yes | No |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as RF24-50mm F4.5-6.3 IS STM relative to 18-50mm F2.8 DC DN.The highlighted cell is the better side for that specification.
Check prices
RF24-50mm F4.5-6.3 IS STM
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18-50mm F2.8 DC DN
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RF24-50mm F4.5-6.3 IS STM in detail18-50mm F2.8 DC DN in detailAll RF mount lenses