TTArtisan AF 40mm f/2 40mm
Weighing just 176g with an STM motor and f/2 aperture, this full-frame 40mm prime combines a natural field of view with low-light capability in an all-metal body. Its clickable aperture ring and USB-upgradeable firmware add tactile control and future-proofing rarely found at this budget tier. This lens is best for street and travel photographers who prioritize a featherweight, discreet setup without sacrificing full-frame coverage.
Focal length 40mm
Aperture f/16
Mount L-Mount
Weight 176 g
af type STM
lens type prime
58 Overall Score
Price €0
Snapshot
Pros & Cons
Pros
- Strong af (86th percentile) 86th
- Strong build (85th percentile) 85th
Cons
- Below average versatility (34th percentile)
- Below average bokeh (35th 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.
Owner sentiment has held steady over time
Based on 22 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 40 |
| Focal Length Max | 40 |
| Elements | 9 |
| Groups | 6 |
| Aspherical Elements | 1 |
| ED Elements | 1 |
Aperture
| Max Aperture | f/16 |
| Min Aperture | f/2 |
| Constant | No |
| Diaphragm Blades | 7 |
Build
| Mount | L-Mount |
| Format | full-frame |
| Weight | 0.2 kg / 0.4 lbs |
| Filter Thread | 52 |
AF & Stabilization
| AF Type | STM |
| Stabilization | No |
Focus
| Min Focus Distance | 400 |
vs Competition
| Spec | TTArtisan AF 40mm f/2 40mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Canon RF 28-70mm f/2.8 IS STM | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Panasonic LUMIX S S-R28200 | Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR |
|---|---|---|---|---|---|---|
| Focal Length | 40mm | 16-300mm | 28-70mm | 18-300mm | 28-200mm | 16-85mm |
| Max Aperture | f/16 | f/3.5 | f/2.8 | f/3.5 | f/4 | f/3.5 |
| Mount | L-Mount | Sony E | Canon RF | Fujifilm X | L-Mount | Nikon F |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | true | true | false | true | false |
| Weight (g) | 176 | 615 | 495 | 92 | 413 | 59 |
| AF Type | STM | HLA | STM | VXD linear motor | Autofocus | AF-S |
| Lens Type | prime | zoom | zoom | zoom | macro | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| TTArtisan AF 40mm f/2 40mm | 85.5 | 34.7 | 85.2 | 57.9 | 40.2 | 49.5 | 34 | 52.4 | 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 | 99.6 | 83 | 99.1 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 85.5 | 86.2 | 67.1 | 77.4 | 84.4 | 83.8 | 77.4 | 87.9 | 98.2 |
| 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 | 99.2 | 83 | 80.5 |
| Panasonic LUMIX S S-R28200 Compare | 54.8 | 77.8 | 73.8 | 89.5 | 90.9 | 71.4 | 95.7 | 75.3 | 99.4 |
| Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR Compare | 54.8 | 74.9 | 98.4 | 59.8 | 64.1 | 76.9 | 94.3 | 87.9 | 92.2 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
