Samyang SYIO45AF-E 45mm
Weighing just 162g, this ultra-compact 45mm f/1.8 prime offers a natural 53-degree field of view and a bright aperture for strong subject separation with 9-blade bokeh. Its advanced optical design with two aspherical elements minimizes distortion while delivering high resolution specifically optimized for Sony E-mount mirrorless bodies. This lens is best for travel and street photographers who prioritize a featherlight, pocketable full-frame setup without sacrificing low-light capability.
Snapshot
Pros & Cons
Pros
- Strong build (89th percentile) 89th
- Strong user sentiment (80th percentile) 80th
Cons
- Below average aperture (23rd percentile)
- Below average bokeh (26th percentile)
- Below average macro (28th 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 6 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 | 7 |
| Groups | 6 |
| Aspherical Elements | 2 |
| Coating | ウルトラマルチコート |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/1.8 |
| Constant | Yes |
| Diaphragm Blades | 9 |
Build
| Mount | Sony E |
| Format | full-frame |
| Weight | 0.2 kg / 0.4 lbs |
| Filter Thread | 49 |
AF & Stabilization
| AF Type | AF |
| Stabilization | No |
Focus
| Min Focus Distance | 450 |
| Max Magnification | 0.12x |
vs Competition
| Spec | Samyang SYIO45AF-E 45mm | Tamron Di III 28-75mm f/2.8 VXD G2 | Sigma Contemporary 10-18mm f/2.8 DC DN | Sony G SELP28135G.SYX | Panasonic LUMIX S S-R2060 | Nikon NIKKOR Z 18-140mm f/3.5-6.3 VR |
|---|---|---|---|---|---|---|
| Focal Length | 45mm | 28-75mm | 10-18mm | 28-135mm | 20-60mm | 18-140mm |
| Max Aperture | f/22 | f/2.8 | f/2.8 | f/4 | f/3.5 | 22-40 |
| Mount | Sony E | Sony E | Sony E | Sony E | L-Mount | Nikon Z |
| Stabilization | false | false | false | true | false | true |
| Weather Sealed | false | true | true | true | true | true |
| Weight (g) | 162 | 540 | 260 | 420 | 350 | 315 |
| AF Type | AF | VXD | Autofocus | SSM | stepping motor | stepping motor |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Samyang SYIO45AF-E 45mm | 54.6 | 26 | 88.6 | 28.3 | 50.3 | 22.6 | 80.3 | 33.6 | 38.5 | 38 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88.1 | 67.3 | 87.3 | 87.8 | 85.8 | 80.3 | 78.2 | 83 | 38 |
| Sigma Contemporary 10-18mm f/2.8 DC DN Compare | 54.6 | 83.5 | 87.4 | 93.3 | 81.6 | 85.8 | 80.3 | 69.1 | 68.7 | 38 |
| Sony G SELP28135G.SYX Compare | 94.2 | 80.2 | 75.6 | 31.2 | 87 | 70 | 63.3 | 92.4 | 50.1 | 92.8 |
| Panasonic LUMIX S S-R2060 Compare | 87 | 86.1 | 80.6 | 66.2 | 76.4 | 79.9 | 0 | 81.5 | 64.7 | 38 |
| Nikon NIKKOR Z 18-140mm f/3.5-6.3 VR Compare | 87 | 14.5 | 83.9 | 84.1 | 89.1 | 22.6 | 0 | 96.3 | 83 | 96.6 |
Price
Value & Pricing
Amazon.com.mx 1 offer From MX$6,120
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
