Tamron issued a firmware update for their f/2.8 FE primes including 20mm, 24mm, and 35mm F2.8 Di III OSD M 1:2 Lenses. The new firmware solves the issue of focus mode may switch from AF to MF during video recording with the SONY α7IV.
These ‘Di III OSD M1:2’ lenses are in three focal lengths: a 20mm f/2.8 Di III OSD M1:2, 24mm f/2.8 Di III OSD M1:2, and 35mm f/2.8 Di III OSD M1:2 lens. You can find the details of the Tamron firmware update below.
Thank you for your continued patronage of Tamron products. On our website dated December 23, 2021, our lenses 20mm F / 2.8 Di III OSD M1: 2 (Model F050), 24mm F / 2.8 Di III OSD M1: 2 (Model F051), 35mm F / 2.8 Di III OSD M1: 2 (Model F053) We have posted a notice that a malfunction will occur for Sony E-mount, but we are pleased to inform you that it has been improved by updating the firmware.
| F050 | 20mm F/2.8 Di III OSD M1:2 | Sony | Ver.3 | 2022.03.28 |
| Ver.3 | This update improves the following issue.
The focus mode may switch from AF to MF during video recording with the SONY α7IV. |
Download Page | ||
| F051 | 24mm F/2.8 Di III OSD M1:2 | Sony | Ver.3 | 2022.03.28 |
| Ver.3 | This update improves the following issue.
The focus mode may switch from AF to MF during video recording with the SONY a7IV. |
Download Page | ||
| F053 | 35mm F/2.8 Di III OSD M1:2 | Sony | Ver.3 | 22022.03.28 |
| Ver.3 | This update improves the following issue.
The focus mode may switch from AF to MF during video recording with the SONY a7IV. |
Download Page | ||
