Irix Firefly 11mm f/4 - Monture Canon EF vs Sigma 15mm f/2.8 EX Fisheye - Monture Canon EF
Prices & availability
Specification comparison
Highlighted rows differ between the two models.
| Specification | Irix Firefly 11mm f/4 - Monture Canon EF | Sigma 15mm f/2.8 EX Fisheye - Monture Canon EF |
|---|---|---|
| Mount | ||
| Mount | canon-ef | canon-ef |
| Optics | ||
| Focal (difference) | 11 mm | 15 mm |
| Aperture (difference) | f/4.0 | f/2.8 |
| Prime | Yes | Yes |
| Stabilization | No | No |
Verdict
Pick the Irix Firefly 11mm if you need the ultra-wide 11mm focal length and can work with the f/4 aperture for your shots. The Sigma 15mm stays the better choice if you prefer a brighter f/2.8 aperture, a slightly less distorted fisheye perspective, or want to save on future filter costs due to its smaller front element. Budget also favors the Irix if the 15mm focal length isn’t a deal-breaker.