Canon RF 5.2mm f/2.8 L Dual Fisheye vs Canon RF7-14mm F2.8-3.5 L Fisheye STM
The bottom line
These cover different focal lengths — the Canon RF 5.2mm f/2.8 L Dual Fisheye is 5mm, 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 5.2mm f/2.8 L Dual Fisheye for wide-angle, the Canon RF7-14mm F2.8-3.5 L Fisheye STM for wide-angle.
Choose the Canon RF 5.2mm f/2.8 L Dual Fisheye if…
- ✓You prefer a fast, compact single focal length — a 5mm prime over a zoom.
Choose the Canon RF7-14mm F2.8-3.5 L Fisheye STM if…
- ✓You need more reach — it goes to 14mm vs 5mm for distant subjects, wildlife and sport.
- ✓You want one-lens flexibility — a 7-14mm zoom covers what the fixed 5mm can't reframe.
- ✓You use filters or shoot video — internal zoom keeps length and balance constant.
Where they differ
- ›Focal range: Canon RF 5.2mm f/2.8 L Dual Fisheye is 5mm, 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 5.2mm f/2.8 L Dual Fisheye a prime (one focal length, usually brighter and lighter).
- ›Price: the Canon RF7-14mm F2.8-3.5 L Fisheye STM is $1,899, $200 under the Canon RF 5.2mm f/2.8 L Dual Fisheye.
- ›Weight: the Canon RF 5.2mm f/2.8 L Dual Fisheye is 395g (13.9 oz) vs 476g (1.05 lb) — you'll feel the difference handheld.
Frequently asked
Is the Canon RF 5.2mm f/2.8 L Dual Fisheye or the Canon RF7-14mm F2.8-3.5 L Fisheye STM better?
These cover different focal lengths — the Canon RF 5.2mm f/2.8 L Dual Fisheye is 5mm, 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 5.2mm f/2.8 L Dual Fisheye for wide-angle, the Canon RF7-14mm F2.8-3.5 L Fisheye STM for wide-angle.
Who should choose the Canon RF 5.2mm f/2.8 L Dual Fisheye?
Choose the Canon RF 5.2mm f/2.8 L Dual Fisheye if you prefer a fast, compact single focal length — a 5mm prime over a zoom.
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 need more reach — it goes to 14mm vs 5mm for distant subjects, wildlife and sport. Choose it if you want one-lens flexibility — a 7-14mm zoom covers what the fixed 5mm can't reframe. 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 5.2mm f/2.8 L Dual Fisheye and the Canon RF7-14mm F2.8-3.5 L Fisheye STM?
Focal range: Canon RF 5.2mm f/2.8 L Dual Fisheye is 5mm, Canon RF7-14mm F2.8-3.5 L Fisheye STM is 7-14mm — different framing and reach.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 5mm | 7-14mm |
| Lens Type | Prime | Zoom |
| Optical Elements | 10 | − |
| Optical Groups | 7 | − |
| Aperture & Iris | ||
| Maximum Aperture | f/2.8 | f/2.8 |
| Minimum Aperture | f/22 | − |
| Aperture Blades | 6 | − |
| Rounded Aperture | No | No |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Canon RF | Canon RF |
| Angle of View | 154° | 190° – 180° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | Nano USM | STM |
| Focus Limiter | No | No |
| AF/MF Switch | No | Yes |
| Min Focus Distance | 13 cm | 15 cm |
| Max Magnification | 0.03x | − |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | Yes |
| General | ||
| Price (MSRP) | $2,099 | $1,899 |
| Filter Size | − | − |
| Diameter | 92.1mm | − |
| Length | 63.2mm | − |
| Weight | 395g (13.9 oz) | 476g (1.05 lb) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | No |
