Canon RF-S 14-30mm f/4-6.3 IS STM PZ vs Sigma 30mm f/1.4 DC DN Contemporary (Canon RF)
The bottom line
The Canon RF-S 14-30mm f/4-6.3 IS STM PZ is a zoom (14-30mm) and the Sigma 30mm f/1.4 DC DN Contemporary (Canon RF) is a 30mm prime. The zoom gives you framing flexibility from one lens; the prime trades that for a fixed focal length that's usually brighter (f/1.4 vs f/4) and lighter to carry. Choose flexibility or a fast single focal length.
Choose the Canon RF-S 14-30mm f/4-6.3 IS STM PZ if…
- ✓You shoot wide — it starts at 14mm vs 30mm for landscapes, interiors and architecture.
- ✓You want one-lens flexibility — a 14-30mm zoom covers what the fixed 30mm can't reframe.
- ✓You shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't.
- ✓You value portability — at 210g (7.4 oz) it's lighter than the 265g (9.3 oz) alternative for travel and all-day carry.
Choose the Sigma 30mm f/1.4 DC DN Contemporary (Canon RF) if…
- ✓You want more light and background blur — f/1.4 is faster than f/4, better for low light and subject separation.
- ✓You prefer a fast, compact single focal length — a 30mm prime over a zoom.
Where they differ
- ›Aperture: the Sigma 30mm f/1.4 DC DN Contemporary (Canon RF) opens to f/1.4 vs the Canon RF-S 14-30mm f/4-6.3 IS STM PZ's f/4 — more light and shallower depth-of-field.
- ›Focal range: Canon RF-S 14-30mm f/4-6.3 IS STM PZ is 14-30mm, Sigma 30mm f/1.4 DC DN Contemporary (Canon RF) is 30mm — different framing and reach.
- ›Type: the Canon RF-S 14-30mm f/4-6.3 IS STM PZ is a zoom (flexible framing), the Sigma 30mm f/1.4 DC DN Contemporary (Canon RF) a prime (one focal length, usually brighter and lighter).
- ›Stabilisation: only the Canon RF-S 14-30mm f/4-6.3 IS STM PZ has optical stabilisation — steadier handheld shots, especially on bodies without IBIS.
- ›Close-up: the Canon RF-S 14-30mm f/4-6.3 IS STM PZ reaches 0.34x magnification vs 0.1x — more for close-up and macro work.
Frequently asked
Is the Canon RF-S 14-30mm f/4-6.3 IS STM PZ or the Sigma 30mm f/1.4 DC DN Contemporary (Canon RF) better?
The Canon RF-S 14-30mm f/4-6.3 IS STM PZ is a zoom (14-30mm) and the Sigma 30mm f/1.4 DC DN Contemporary (Canon RF) is a 30mm prime. The zoom gives you framing flexibility from one lens; the prime trades that for a fixed focal length that's usually brighter (f/1.4 vs f/4) and lighter to carry. Choose flexibility or a fast single focal length.
Who should choose the Canon RF-S 14-30mm f/4-6.3 IS STM PZ?
Choose the Canon RF-S 14-30mm f/4-6.3 IS STM PZ if you shoot wide — it starts at 14mm vs 30mm for landscapes, interiors and architecture. Choose it if you want one-lens flexibility — a 14-30mm zoom covers what the fixed 30mm can't reframe. Choose it if you shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't. Choose it if you value portability — at 210g (7.4 oz) it's lighter than the 265g (9.3 oz) alternative for travel and all-day carry.
Who should choose the Sigma 30mm f/1.4 DC DN Contemporary (Canon RF)?
Choose the Sigma 30mm f/1.4 DC DN Contemporary (Canon RF) if you want more light and background blur — f/1.4 is faster than f/4, better for low light and subject separation. Choose it if you prefer a fast, compact single focal length — a 30mm prime over a zoom.
What is the main difference between the Canon RF-S 14-30mm f/4-6.3 IS STM PZ and the Sigma 30mm f/1.4 DC DN Contemporary (Canon RF)?
Aperture: the Sigma 30mm f/1.4 DC DN Contemporary (Canon RF) opens to f/1.4 vs the Canon RF-S 14-30mm f/4-6.3 IS STM PZ's f/4 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 14-30mm | 30mm |
| Lens Type | Zoom | Prime |
| Optical Elements | 12 | 9 |
| Optical Groups | 9 | 6 |
| Aperture & Iris | ||
| Maximum Aperture | f/4 | f/1.4 |
| Minimum Aperture | f/22 | f/16 |
| Aperture Blades | 7 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | APS-C | APS-C |
| Lens Mount | Canon RF | Canon RF |
| Angle of View | 91° – 51° | 51° |
| 35mm Equivalent | 22-48mm | 48-48mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | STM | HLA |
| Focus Limiter | No | No |
| AF/MF Switch | No | Yes |
| Min Focus Distance | 12 cm | 30 cm |
| Max Magnification | 0.34x | 0.1x |
| Stabilization & Video | ||
| Optical Stabilization | Yes | No |
| Aperture Ring | No | Yes |
| Declickable Aperture | No | Yes |
| Parfocal | No | No |
| Internal Zoom | Yes | No |
| General | ||
| Price (MSRP) | $399 | $349 |
| Filter Size | 55mm | 52mm |
| Diameter | 68.4mm | 64.8mm |
| Length | 45.8mm | 51.5mm |
| Weight | 210g (7.4 oz) | 265g (9.3 oz) |
| Weather Sealed | No | No |
| Tripod Collar | No | No |
