Canon RF 28mm f/2.8 STM vs Canon RF7-14mm F2.8-3.5 L Fisheye STM
The bottom line
These cover different focal lengths — the Canon RF 28mm f/2.8 STM is 28mm, the Canon RF7-14mm F2.8-3.5 L Fisheye STM is 7-14mm — so they're not really substitutes. Pick by the field of view you actually need: the Canon RF 28mm f/2.8 STM for standard, the Canon RF7-14mm F2.8-3.5 L Fisheye STM for wide-angle.
Choose the Canon RF 28mm f/2.8 STM if…
- ✓You need more reach — it goes to 28mm vs 14mm for distant subjects, wildlife and sport.
- ✓You're on a budget — $299 vs $1,899 leaves more for other gear.
- ✓You prefer a fast, compact single focal length — a 28mm prime over a zoom.
- ✓You value portability — at 120g (4.2 oz) it's lighter than the 476g (1.05 lb) alternative for travel and all-day carry.
Choose the Canon RF7-14mm F2.8-3.5 L Fisheye STM if…
- ✓You shoot wide — it starts at 7mm vs 28mm for landscapes, interiors and architecture.
- ✓You want one-lens flexibility — a 7-14mm zoom covers what the fixed 28mm can't reframe.
- ✓You work outdoors — it's weather-sealed against dust and moisture; the other isn't.
- ✓You use filters or shoot video — internal zoom keeps length and balance constant.
Where they differ
- ›Focal range: Canon RF 28mm f/2.8 STM is 28mm, Canon RF7-14mm F2.8-3.5 L Fisheye STM is 7-14mm — different framing and reach.
- ›Type: the Canon RF7-14mm F2.8-3.5 L Fisheye STM is a zoom (flexible framing), the Canon RF 28mm f/2.8 STM a prime (one focal length, usually brighter and lighter).
- ›Price: the Canon RF 28mm f/2.8 STM is $299, $1,600 under the Canon RF7-14mm F2.8-3.5 L Fisheye STM.
- ›Weight: the Canon RF 28mm f/2.8 STM is 120g (4.2 oz) vs 476g (1.05 lb) — you'll feel the difference handheld.
- ›Durability: the Canon RF7-14mm F2.8-3.5 L Fisheye STM is weather-sealed; the other isn't.
Frequently asked
Is the Canon RF 28mm f/2.8 STM or the Canon RF7-14mm F2.8-3.5 L Fisheye STM better?
These cover different focal lengths — the Canon RF 28mm f/2.8 STM is 28mm, the Canon RF7-14mm F2.8-3.5 L Fisheye STM is 7-14mm — so they're not really substitutes. Pick by the field of view you actually need: the Canon RF 28mm f/2.8 STM for standard, the Canon RF7-14mm F2.8-3.5 L Fisheye STM for wide-angle.
Who should choose the Canon RF 28mm f/2.8 STM?
Choose the Canon RF 28mm f/2.8 STM if you need more reach — it goes to 28mm vs 14mm for distant subjects, wildlife and sport. Choose it if you're on a budget — $299 vs $1,899 leaves more for other gear. Choose it if you prefer a fast, compact single focal length — a 28mm prime over a zoom. Choose it if you value portability — at 120g (4.2 oz) it's lighter than the 476g (1.05 lb) alternative for travel and all-day carry.
Who should choose the Canon RF7-14mm F2.8-3.5 L Fisheye STM?
Choose the Canon RF7-14mm F2.8-3.5 L Fisheye STM if you shoot wide — it starts at 7mm vs 28mm for landscapes, interiors and architecture. Choose it if you want one-lens flexibility — a 7-14mm zoom covers what the fixed 28mm can't reframe. Choose it if you work outdoors — it's weather-sealed against dust and moisture; the other isn't. Choose it if you use filters or shoot video — internal zoom keeps length and balance constant.
What is the main difference between the Canon RF 28mm f/2.8 STM and the Canon RF7-14mm F2.8-3.5 L Fisheye STM?
Focal range: Canon RF 28mm f/2.8 STM is 28mm, Canon RF7-14mm F2.8-3.5 L Fisheye STM is 7-14mm — different framing and reach.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 28mm | 7-14mm |
| Lens Type | Prime | Zoom |
| Optical Elements | 9 | − |
| Optical Groups | 7 | − |
| Aperture & Iris | ||
| Maximum Aperture | f/2.8 | f/2.8 |
| Minimum Aperture | f/22 | − |
| Aperture Blades | 7 | − |
| Rounded Aperture | No | No |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Canon RF | Canon RF |
| Angle of View | 75° | 190° – 180° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | STM | STM |
| Focus Limiter | No | No |
| AF/MF Switch | No | Yes |
| Min Focus Distance | 19 cm | 15 cm |
| Max Magnification | 0.26x | − |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | Yes |
| General | ||
| Price (MSRP) | $299 | $1,899 |
| Filter Size | 43mm | − |
| Diameter | 69.2mm | − |
| Length | 24.7mm | − |
| Weight | 120g (4.2 oz) | 476g (1.05 lb) |
| Weather Sealed | No | Yes |
| Tripod Collar | No | No |
