IRIX Dragonfly 45mm f/1.4 45mm
A fast f/1.4 aperture combined with one aspherical and four HR elements delivers sharp, low-light imagery with controlled aberrations on full-frame Nikon F bodies. Its Dragonfly weather-sealed construction and focus lock mechanism provide a robust, tactile shooting experience in harsh conditions. This lens is best for portrait photographers who prioritize deliberate manual focus and shallow depth of field over autofocus speed.
Snapshot
Pros & Cons
Pros
- Strong bokeh (97th percentile) 97th
- Strong aperture (96th percentile) 96th
Cons
- Below average af (15th percentile)
- Below average social proof (18th percentile)
- Below average user sentiment (25th percentile)
- Below average versatility (34th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Based on 7 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 45 |
| Focal Length Max | 45 |
| Elements | 11 |
| Groups | 9 |
| Coating | UV-reactive paint |
Aperture
| Max Aperture | f/1.4 |
| Min Aperture | f/1.4 |
| Constant | Yes |
| Diaphragm Blades | 9 |
Build
| Mount | Nikon F |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.9 kg / 2.0 lbs |
| Filter Thread | 77 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 400 |
vs Competition
| Spec | IRIX Dragonfly 45mm f/1.4 45mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Panasonic LUMIX S S-R28200 | Meike 50mm F1.8 Full Frame STM Auto Focus Prime | Fujifilm XF 50-140mm f/2.8 R LM OIS WR |
|---|---|---|---|---|---|---|
| Focal Length | 45mm | 16-300mm | 18-300mm | 28-200mm | 50mm | 50-140mm |
| Max Aperture | f/1.4 | f/3.5 | f/3.5 | f/4 | f/1.8 | f/2.8 |
| Mount | Nikon F | Sony E | Fujifilm X | L-Mount | Panasonic Sigma L | Fujifilm X |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | true | true | false | true | false | true |
| Weight (g) | 905 | 615 | 92 | 413 | 297 | 995 |
| AF Type | manual focus only | HLA | VXD linear motor | Autofocus | STM | Triple Linear Motor |
| Lens Type | prime | zoom | zoom | macro | prime | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| IRIX Dragonfly 45mm f/1.4 45mm | 15.3 | 96.6 | 38 | 57.9 | 50.7 | 96.4 | 25.4 | 34 | 18.3 | 35.6 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.8 | 84.3 | 57.8 | 86.5 | 98.8 | 76.9 | 0 | 99.6 | 83 | 99.1 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.1 | 74.9 | 96.3 | 88.4 | 73.5 | 76.9 | 34.8 | 99.2 | 83 | 80.5 |
| Panasonic LUMIX S S-R28200 Compare | 54.8 | 77.8 | 73.8 | 89.5 | 90.9 | 71.4 | 0 | 95.7 | 75.3 | 99.4 |
| Meike 50mm F1.8 Full Frame STM Auto Focus Prime Compare | 85.5 | 95.9 | 71.2 | 96.2 | 57.2 | 93 | 88.4 | 34 | 52.5 | 80.5 |
| Fujifilm XF 50-140mm f/2.8 R LM OIS WR Compare | 98.1 | 81.4 | 35.1 | 16.9 | 98.3 | 83.8 | 0 | 78.6 | 87.9 | 96.3 |
Price
Value & Pricing
Amazon.com.mx 1 offer From MX$17,087
We started tracking prices for this product on Jun 4, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
