Sigma 15mm F1.4 DC Contemporary (Canon RF) vs Sigma 23mm f/1.4 DC DN Contemporary (Canon RF)
The bottom line
These cover different focal lengths — the Sigma 15mm F1.4 DC Contemporary (Canon RF) is 15mm, the Sigma 23mm f/1.4 DC DN Contemporary (Canon RF) is 23mm — so they're not really substitutes. Pick by the field of view you actually need: the Sigma 15mm F1.4 DC Contemporary (Canon RF) for wide-angle, the Sigma 23mm f/1.4 DC DN Contemporary (Canon RF) for standard.
Choose the Sigma 15mm F1.4 DC Contemporary (Canon RF) if…
- ✓You shoot wide — it starts at 15mm vs 23mm for landscapes, interiors and architecture.
- ✓You work outdoors — it's weather-sealed against dust and moisture; the other isn't.
Choose the Sigma 23mm f/1.4 DC DN Contemporary (Canon RF) if…
- ✓You need more reach — it goes to 23mm vs 15mm for distant subjects, wildlife and sport.
- ✓You like close-focus work — 0.21x magnification vs 0.15x.
Where they differ
- ›Focal range: Sigma 15mm F1.4 DC Contemporary (Canon RF) is 15mm, Sigma 23mm f/1.4 DC DN Contemporary (Canon RF) is 23mm — different framing and reach.
- ›Price: the Sigma 23mm f/1.4 DC DN Contemporary (Canon RF) is $449, $130 under the Sigma 15mm F1.4 DC Contemporary (Canon RF).
- ›Durability: the Sigma 15mm F1.4 DC Contemporary (Canon RF) is weather-sealed; the other isn't.
Frequently asked
Is the Sigma 15mm F1.4 DC Contemporary (Canon RF) or the Sigma 23mm f/1.4 DC DN Contemporary (Canon RF) better?
These cover different focal lengths — the Sigma 15mm F1.4 DC Contemporary (Canon RF) is 15mm, the Sigma 23mm f/1.4 DC DN Contemporary (Canon RF) is 23mm — so they're not really substitutes. Pick by the field of view you actually need: the Sigma 15mm F1.4 DC Contemporary (Canon RF) for wide-angle, the Sigma 23mm f/1.4 DC DN Contemporary (Canon RF) for standard.
Who should choose the Sigma 15mm F1.4 DC Contemporary (Canon RF)?
Choose the Sigma 15mm F1.4 DC Contemporary (Canon RF) if you shoot wide — it starts at 15mm vs 23mm for landscapes, interiors and architecture. Choose it if you work outdoors — it's weather-sealed against dust and moisture; the other isn't.
Who should choose the Sigma 23mm f/1.4 DC DN Contemporary (Canon RF)?
Choose the Sigma 23mm f/1.4 DC DN Contemporary (Canon RF) if you need more reach — it goes to 23mm vs 15mm for distant subjects, wildlife and sport. Choose it if you like close-focus work — 0.21x magnification vs 0.15x.
What is the main difference between the Sigma 15mm F1.4 DC Contemporary (Canon RF) and the Sigma 23mm f/1.4 DC DN Contemporary (Canon RF)?
Focal range: Sigma 15mm F1.4 DC Contemporary (Canon RF) is 15mm, Sigma 23mm f/1.4 DC DN Contemporary (Canon RF) is 23mm — different framing and reach.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 15mm | 23mm |
| Lens Type | Prime | Prime |
| Optical Elements | 13 | 10 |
| Optical Groups | 11 | 8 |
| Aperture & Iris | ||
| Maximum Aperture | f/1.4 | f/1.4 |
| Minimum Aperture | f/16 | f/16 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | APS-C | APS-C |
| Lens Mount | Canon RF | Canon RF |
| Angle of View | 82.9° | 63° |
| 35mm Equivalent | 24-24mm | 37-37mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | HLA | HLA |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 18 cm | 23 cm |
| Max Magnification | 0.15x | 0.21x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | Yes | Yes |
| Declickable Aperture | Yes | Yes |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $579 | $449 |
| Filter Size | 58mm | 52mm |
| Diameter | 64mm | 64.8mm |
| Length | 65mm | 60.5mm |
| Weight | 220g (7.8 oz) | 265g (9.3 oz) |
| Weather Sealed | Yes | No |
| Tripod Collar | No | No |
