IRIX Firefly IL-15FF-EF 15mm
IRIX
54 Overall Score
vs
Sigma Contemporary 10-18mm f/2.8 DC DN 10-18mm
Sigma
92 Overall Score
Scores
Travel
Street
Professional
Macro
Portrait
Budget
Landscape
Video Cinema
Wildlife Sports
Specifications
| IRIX Firefly IL-15FF-EF 15mm | Sigma Contemporary 10-18mm f/2.8 DC DN 10-18mm | |
|---|---|---|
| Optics | ||
| Type | ultra-wide-angle | zoom |
| Focal Length Min | 15 mm | 10 mm |
| Focal Length Max | 15 mm | 18 mm |
| Elements | 15 | 13 |
| Groups | 11 | 10 |
| Aspherical Elements | — | 1★ |
| ED Elements | — | 4★ |
| Coating | Neutrino coating | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/2.4 | f/2.8 |
| Min Aperture | f/22 | f/2.8 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | 9★ | 7 |
| Build | ||
| Mount | Canon EF | Sony E |
| Format | Full-Frame★ | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.60 kg | 0.26 kg★ |
| Filter Thread | 95 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | manual focus only | Autofocus |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 280 mm | 117 mm★ |
| Max Magnification | — | 1:4★ |
Pros & Cons
IRIX Firefly IL-15FF-EF 15mm
- Strong bokeh (91st percentile)91st %ile
- Strong aperture (90th percentile)90th %ile
- Strong macro (75th percentile)
- Strong optical (68th percentile)
- Below average af (14th percentile)14th %ile
- Below average user sentiment (16th percentile)16th %ile
- Below average versatility (34th percentile)
Sigma Contemporary 10-18mm f/2.8 DC DN 10-18mm
- Strong macro (93rd percentile)93rd %ile
- Strong build (87th percentile)87th %ile
- Strong aperture (86th percentile)86th %ile
- Strong bokeh (84th percentile)84th %ile
Verdict
Winner: Sigma Contemporary 10-18mm f/2.8 DC DN 10-18mm
Scores 92 overall, wins 9 of 9 usage categories and 6 of 21 specs.