Tamron 35-150mm f/2-2.8 Lens: Compatibility Issues with Sony a7V
The Tamron 35-150mm f/2-2.8 Di III VXD lens, a popular choice for Sony E-mount and Nikon Z mirrorless cameras, is experiencing autofocus issues when paired with the Sony a7V. Recent testing reveals erratic autofocus performance, inaccuracies, and occasional autofocus failures with this lens on the a7V camera body.
Background on the Tamron 35-150mm f/2-2.8
Released in September 2021 for Sony E-mount and in August 2023 for Nikon Z-mount, the Tamron 35-150mm f/2-2.8 is a versatile zoom lens known for its fast aperture and wide focal length range. Tamron describes it as a high-resolution travel zoom lens, capable of capturing a variety of subjects without the need for frequent lens changes. It features a linear motor focus mechanism (VXD) for fast and precise autofocus. Photography Life highlights its ability to potentially replace multiple lenses, including midrange and telephoto zooms, as well as prime lenses.
The Sony a7V Compatibility Issue
Testing has revealed that when used with the Sony a7V, the Tamron 35-150mm f/2-2.8 exhibits the following autofocus problems:
- Erratic or inaccurate autofocus
- Complete autofocus failure in some instances
- Inaccuracies in scene detection, particularly with eye detection – resembling a similar issue previously observed with Fujifilm cameras.
Implications for Photographers
Photographers currently using or considering the Tamron 35-150mm f/2-2.8 lens with the Sony a7V should be aware of these potential autofocus issues. While Tamron is partially owned by Sony and licensed to produce lenses for the E-mount, this has not prevented compatibility problems from arising with the a7V.
Recommendations
Given these findings, it is currently recommended to exercise caution when using the Tamron 35-150mm f/2-2.8 lens with the Sony a7V. Photographers should be aware of the potential for autofocus inconsistencies and plan accordingly. Further updates and potential firmware solutions from both Tamron and Sony may address these issues in the future.