The Tamron 17-28mm f/2.8 Di III RXD (A046) is a fast ultra-wide-angle zoom lens for Sony full-frame E-mount mirrorless cameras, offering a constant f/2.8 aperture in a compact and lightweight package. It uses Tamron's RXD stepping motor for smooth and quiet autofocus, and features moisture-resistant construction. Part of Tamron's Di III series for full-frame Sony E-mount, pairing well with the 28-75mm f/2.8 for extended coverage.
Product released: July 1, 2019
Latest firmware version
Version 3, released June 22, 2020
Last checked for updates: Oct 31, 2026 05:18 UTC
What's new in version 3
This update improves the following issues:When you use flashes, there is a delay from the time the shutter button is pressed to the time the shutter and the flash release.Applicable camera models: α7, α7 II, α7R, α7R II, α7S, α7S II, α5000, α5100, α6000, α6300, α6500, NEX-3N, NEX-5R, NEX-5T, NEX-7, NEX-F3, NEX-6Updated Serial Number: 065935 or later
The Tamron 17-28mm f/2.8 Di III RXD (A046) is a fast ultra-wide-angle zoom lens for Sony full-frame E-mount mirrorless cameras, offering a constant f/2.8 aperture in a compact and lightweight package. It uses Tamron's RXD stepping motor for smooth and quiet autofocus, and features moisture-resistant construction. Part of Tamron's Di III series for full-frame Sony E-mount, pairing well with the 28-75mm f/2.8 for extended coverage. It was originally released on July 1, 2019.
What is the latest firmware version of Tamron 17-28mm f/2.8 Di III RXD (A046)?
The latest firmware version of Tamron 17-28mm f/2.8 Di III RXD (A046) is 3. It was released on June 22, 2020.
What changed in Tamron 17-28mm f/2.8 Di III RXD (A046) firmware version 3?
Tamron 17-28mm f/2.8 Di III RXD (A046) firmware version 3 includes the following changes: This update improves the following issues:When you use flashes, there is a delay from the time the shutter button is pressed to the time the shutter and the flash release.Applicable camera models: α7, α7 II, α7R, α7R II, α7S, α7S II, α5000, α5100, α6000, α6300, α6500, NEX-3N, NEX-5R, NEX-5T, NEX-7, NEX-F3, NEX-6Updated Serial Number: 065935 or later
Where can I download the latest Tamron 17-28mm f/2.8 Di III RXD (A046) firmware?
Details and download instructions for the latest Tamron 17-28mm f/2.8 Di III RXD (A046) firmware (version 3) are on Tamron's official release page: https://www.tamron.com/global/consumer/support/download/firmware/a046/sony_e/