On sale 40%
IRIX Dragonfly 21mm f/1.4
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 $419
Snapshot
Pros & Cons
Pros
- Strong optical (90th percentile) 90th
- Strong macro (71st percentile) 71st
Cons
- Below average af (13th percentile)
- Below average build (24th percentile)
- Below average versatility (33rd 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 Dragonfly 21mm f/1.4 | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Nikon NIKKOR Z 17-28mm f/2.8 | Sigma Contemporary 16-28mm f/2.8 DG DN | Panasonic Leica DG Vario-Elmarit H-ES12060 | Canon RF 28-70mm f/2.8 IS STM |
|---|---|---|---|---|---|---|
| Focal Length | 21mm | 17-70mm | 17-28mm | 16-28mm | 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 | Fujifilm X | Nikon Z | Sony E | Micro Four Thirds | Canon RF |
| Stabilization | false | true | false | false | true | true |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 830 | 544 | 450 | 450 | 320 | 495 |
| AF Type | manual focus only | RXD | Stepping Motor | Stepping AF Motor | 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 Dragonfly 21mm f/1.4 | 12.8 | 44.3 | 23.5 | 70.9 | 90 | 42.2 | 33.3 | 55.5 | 37.8 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.7 | 87.4 | 69.6 | 85.9 | 91 | 84.6 | 89.3 | 85.1 | 83.4 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.4 | 87.4 | 75.9 | 85.9 | 88 | 84.6 | 67.3 | 68.8 | 37.8 |
| Sigma Contemporary 16-28mm f/2.8 DG DN Compare | 87.4 | 87.4 | 75.9 | 77.8 | 97.2 | 84.6 | 68 | 62.7 | 37.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98.1 | 87.4 | 84.6 | 51.9 | 91 | 84.6 | 93.1 | 67.8 | 83.4 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 87.4 | 24.1 | 72.6 | 80 | 86.2 | 21 | 76.9 | 89.3 | 98.6 |
Price
Value & Pricing
From $419
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Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
