IRIX
Its f/1.4 maximum aperture paired with an 11-blade diaphragm and 4 ED, 2 aspherical elements delivers sharp, low-distortion images with smooth bokeh. The weather-sealed, all-metal Dragonfly build with engraved focus markings provides precise manual control at a competitive price. This lens is best for astrophotographers and architectural shooters needing a fast ultra-wide prime for reliable outdoor use.
Focal length 21mm
Aperture f/16
Mount Canon EF
Weather Sealed Yes
Weight 830 g
af type manual focus only
lens type wide-angle
37 Overall Score
Price €0
No listings available
Snapshot
Pros & Cons
Pros
- Strong optical (89th percentile) 89th
- Strong macro (71st percentile) 71st
Cons
- Below average af (14th percentile)
- Below average build (22nd percentile)
- Below average versatility (34th percentile)
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Wide-angle |
| Focal Length Min | 21 |
| Focal Length Max | 21 |
| Elements | 15 |
| Groups | 11 |
| Aspherical Elements | 2 |
| ED Elements | 4 |
| Coating | 1034 |
Aperture
| Max Aperture | f/16 |
| Min Aperture | f/1.4 |
| Diaphragm Blades | 11 |
Build
| Mount | Canon EF |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.8 kg / 1.8 lbs |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 300 |
vs Competition
| Spec | IRIX | Nikon NIKKOR Z 17-28mm f/2.8 | Tamron Di III 28-75mm f/2.8 VXD G2 | Sigma Contemporary 10-18mm f/2.8 DC DN | Panasonic Leica DG Vario-Elmarit H-ES12060 | Canon RF 28-70mm f/2.8 IS STM |
|---|---|---|---|---|---|---|
| Focal Length | 21mm | 17-28mm | 28-75mm | 10-18mm | 12-60mm | 28-70mm |
| Max Aperture | f/16 | f/2.8 | f/2.8 | f/2.8 | f/2.8 | f/22 |
| Mount | Canon EF | Nikon Z | Sony E | Sony E | Micro Four Thirds | Canon RF |
| Stabilization | false | false | false | false | true | true |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 830 | 450 | 540 | 260 | 320 | 495 |
| AF Type | manual focus only | Stepping Motor | VXD | Autofocus | linear motor | STM |
| Lens Type | wide-angle | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| IRIX | 13.9 | 48.2 | 21.9 | 70.6 | 89.1 | 45.8 | 33.6 | 50.1 | 37.9 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 86.9 | 88.1 | 73.6 | 86.3 | 86.9 | 85.8 | 68.1 | 64.6 | 37.9 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88.1 | 67.2 | 87.3 | 87.8 | 85.8 | 78.2 | 83.1 | 37.9 |
| Sigma Contemporary 10-18mm f/2.8 DC DN Compare | 54.6 | 83.5 | 87.3 | 93.3 | 81.6 | 85.8 | 69.1 | 68.8 | 37.9 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98 | 88.1 | 83.1 | 50.4 | 90.2 | 85.8 | 93.1 | 63.5 | 83.2 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 86.9 | 25.9 | 70.2 | 80.4 | 85 | 22.6 | 77.1 | 87.9 | 98.5 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
