Yongnuo YN25mm F1.7M 25mm
Combining a bright F1.7 aperture with a near-silent STM stepper motor, this 150g lens offers fast, quiet autofocus in a compact build for Micro Four Thirds. It includes full-time manual focus override and a 7-blade aperture, while two aspherical and one ED element control aberrations for smooth background blur. Best for street photographers and MFT videographers needing a lightweight prime that can focus as close as 20cm for detailed close-ups in dim light.
Snapshot
Pros & Cons
Pros
- Strong build (88th percentile) 88th
- Strong af (87th percentile) 87th
- Strong stabilization (81th percentile) 81th
Cons
- Below average user sentiment (8th percentile)
- Below average bokeh (16th percentile)
- Below average aperture (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 12 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | prime |
| Focal Length Min | 25 |
| Focal Length Max | 25 |
| Elements | 7 |
| Groups | 6 |
| Aspherical Elements | 2 |
| ED Elements | 1 |
| Coating | multi-layer coating |
Aperture
| Max Aperture | 22 |
| Min Aperture | 1.7 |
| Constant | No |
| Diaphragm Blades | 7 |
Build
| Mount | Four Thirds |
| Format | micro-four-thirds |
| Weight | 0.1 kg / 0.3 lbs |
| Filter Thread | 52 |
AF & Stabilization
| AF Type | STM |
| Stabilization | Yes |
Focus
| Min Focus Distance | 200 |
| Max Magnification | 0.2x |
vs Competition
| Spec | Yongnuo YN25mm F1.7M 25mm | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Nikon Nikkor 2166 | Canon EF-S 18-135mm f/3.5-5.6 IS USM | Sony E SELP1650 | Meike 50mm F1.8 Full Frame STM Auto Focus Prime |
|---|---|---|---|---|---|---|
| Focal Length | 25mm | 18-300mm | 55-200mm | 18-135mm | 16-50mm | 50mm |
| Max Aperture | 22 | f/3.5 | f/4 | f/3.5 | f/3.5 | f/1.8 |
| Mount | Four Thirds | Fuji X | Nikon F | Canon EF-S | Sony E | Sony E |
| Stabilization | true | true | true | true | true | true |
| Weather Sealed | false | false | false | false | false | false |
| Weight (g) | 150 | 92 | 255 | 515 | 116 | 369 |
| AF Type | STM | VXD linear motor | Silent Wave Motor | STM | Stepping motor | STM |
| Lens Type | prime | zoom | telephoto | zoom | zoom | Wide-Angle |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Yongnuo YN25mm F1.7M 25mm | 86.6 | 15.8 | 88.1 | 36.7 | 52 | 24.5 | 7.5 | 34.1 | 63.5 | 81.1 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.2 | 75.5 | 96.4 | 87.8 | 74.3 | 77.5 | 30.3 | 99.2 | 83.1 | 81.1 |
| Nikon Nikkor 2166 Compare | 54.9 | 70.3 | 76.8 | 81.2 | 66.4 | 71.8 | 91.7 | 85.3 | 83.1 | 92.5 |
| Canon EF-S 18-135mm f/3.5-5.6 IS USM Compare | 86.6 | 75.5 | 46.6 | 33.2 | 79.8 | 77.5 | 0 | 96 | 78 | 92.5 |
| Sony E SELP1650 Compare | 86.6 | 75.5 | 93.6 | 35.1 | 64.4 | 77.5 | 63.6 | 83.5 | 74.1 | 92.5 |
| Meike 50mm F1.8 Full Frame STM Auto Focus Prime Compare | 86.6 | 96.1 | 62.8 | 95.7 | 38.6 | 93 | 86.1 | 34.1 | 50.2 | 81.1 |
Price
Value & Pricing
Amazon.ca 1 offers From CA$196
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
