TTArtisan AF 40mm f/2
TTArtisan · 40 mm · f/2
Score Breakdown
Scores combine our editorial testing with published lab data.
57
SCORE /100
What We Like
+Compact and lightweight all-metal construction at an affordable price point ($168)
+Sharp center performance with good low-light capability thanks to f/2 aperture
+Mechanical aperture ring with satisfying click-stops—rare in modern autofocus lenses
+STM motor provides quiet, smooth autofocus suitable for video and stills
+USB-C firmware update port for convenient maintenance and improvements
Worth Knowing
−Strong vignetting at f/2 that remains noticeable even when stopped down to f/5.6
−Soft corner performance on full-frame; corners only sharpen noticeably by f/8-f/11
−Significant focus breathing that may be problematic for videographers
−No weather sealing and limited close-focus performance (higher minimum focus distance than competitors)
General | |
|---|---|
About This LensThe TTArtisan AF 40mm f/2 is a very compact and lightweight lens that offers strong build and optical qualities, including low distortion and good sharpness across most of the frame. It features a dedicated aperture ring with one-third-stop increments, which is an uncommon trait for modern autofocus lenses at this price. The lens is built entirely from metal, giving it a sturdy feel that's unusual at this price point. However, vignetting is very strong at f/2 and remains noticeable when stopped down, and close-up performance is poor wide open with contrast nearly disappearing until you reach f/4. | |
| Brand | TTArtisan |
| Release Year | 2025 |
Production Status ⓘCurrent status of lens manufacturing (e.g., in production, discontinued). |  In Production |
Lens Mount ⓘThe lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras. | Leica L |
System ⓘIndicates which camera system the lens is designed to attach to. | Leica L |
Maximum Format ⓘLargest sensor size compatible with the lens. |  Full Frame |
Physical64/100 | |
| Lens Weight | 176 g |
Lens Diameter ⓘWidth of the lens at its widest point | 61 mm |
Lens Length ⓘHow long the lens is from front to back. | 46 mm |
Front Filter Compatible ⓘSome lenses are compatible with front filters, some are compatible with back filters and some are compatible with both. Front filters are usually more convenient to add and remove. |  Yes |
Front Filter Size ⓘDiameter of attachable filters. | 52 mm |
Optics78/100 | |
Focal Range ⓘShortest to longest focal length of the lens (zoom range start - end ) | 40 mm |
Aperture Range ⓘLargest aperture at the lens's shortest focal length to longest focal length (aperture range start - end) | 2 |
| Focal Length Angle of View | 57° |
Flange Focal Distance ⓘDistance from lens mount to sensor. | 20 mm |
Diaphragm Type ⓘStructure and design of the aperture |  Automatic |
Blades ⓘNumber of diaphragm blades in aperture | 7020 |
Zoom Lens ⓘZoom allows you to vary the focal length, change between long shots and close-ups | No |
Closest Focusing Distance ⓘMinimum distance for a subject to be in focus. | 40 cm01500 |
Maximum Magnification ⓘLargest size a subject can be reproduced | 0.13x |
| Autofocus Mode |  Yes |
| Manual Mode |  Yes |
| Manual Focusing Ring |  Yes |
Features | |
Weather Sealing ⓘWeather sealing capabilities will give you more confidence when shooting in unfavourable conditions. | No |
Fluorine Coating ⓘCoating to repel water and oil from lens elements. | No |
| Built In Lens Hood | No |
| Lens Hood Type |  Round |
Teleconverter ⓘA teleconverter (extender) is an extra piece of equipment that fits between the lens and the camera body to enhance magnification | No |
| Image Stabilization | No |
Construction54/100 | |
Elements ⓘLens elements refer to individual pieces of glass within the lens. | 9 |
| Groups | 6 |
Aspherical Elements ⓘThe number of aspherical lens elements which can help correct aberrations such as spherical aberration. | 1 |
Bi Aspherical Elements ⓘElements with two non-spherical surfaces | 0 |
Low Dispersion ⓘElements that reduce chromatic aberration | 1 |
Super Low Dispersion ⓘAdvanced elements further reducing chromatic aberration | 0 |
CA Reduction ⓘBuilt-in features to reduce chromatic aberration | 0 |
Internal Focusing ⓘInternal Focusing means that the lens does not change in size during focusing, and the front element does not rotate. |  Yes |