Canon RF20-50mm F4 L IS USM PZvsCanon RF28mm F2.8 STM
RF20-50mm F4 L IS USM PZ
20-50mm / F4
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RF28mm F2.8 STM
28mm / F2.8
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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
- Weather sealingHas weather sealing
When the RF28mm F2.8 STM suits you better
- Brightness1.0 stops brighter — better in low light and blurs the background more
- Weight300g 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
- RF28mm F2.8 STM24.7mm long × 69.2mm diameter
Specifications compared
| Specification | Canon RF20-50mm F4 L IS USM PZ | Canon RF28mm F2.8 STM | Difference |
|---|---|---|---|
| Focal length (wide) | 20mm | 28mm | −8mm |
| Focal length (tele) | 50mm | 28mm | +22mm |
| Max aperture (wide) | F4 | F2.8 | 1.0 stops darker |
| Max aperture (tele) | F4 | F2.8 | 1.0 stops darker |
| Min aperture | F22 | F22 | — |
| Min focus distance | 24cm | 23cm | +0.01m |
| Max magnification | 0.33× | 0.17× | +0.16x |
| Aperture blades | 9blades | 7blades | +2blades |
| Weight | 420g | 120g | +300g |
| Length | 98.4mm | 24.7mm | +73.7mm |
| Diameter | 79.9mm | 69.2mm | +10.7mm |
| Filter size | 67mm | 55mm | +12mm |
| Released | 2026 | 2023 | +3year |
| Stabilization | Yes | No | Yes |
| Weather sealing | Yes | No | Yes |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as RF20-50mm F4 L IS USM PZ relative to RF28mm F2.8 STM.The highlighted cell is the better side for that specification.
Check prices
RF20-50mm F4 L IS USM PZ
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RF28mm F2.8 STM
ADLinks to Amazon, B&H Photo, Adorama, KEH Camera, MPB, eBay are affiliate links. We may earn a commission if you buy through them, at no extra cost to you.Links marked “Search results” go to that retailer’s search page for this lens name.Check price and availability on the retailer’s own site.
RF20-50mm F4 L IS USM PZ in detailRF28mm F2.8 STM in detailAll RF mount lenses