Review

https://dc.watch.impress.co.jp/docs/review/newproduct/1196847.html

Review

https://sonyalpha.blog/2019/07/28/tamron-17-28mm-f2-8-di-iii-rxd/

Review

https://admiringlight.com/blog/review-tamron-17-28mm-f-2-8-di-iii-rxd/

Samples

https://www.photographyblog.com/previews/tamron_17_28mm_f2_8_di_iii_rxd_photos

New firmware

This update improves the following issues which may rarely occur with certain settings.

1. The back monitor of camera instantly flashes when the shutter button is pressed halfway.
2. AF doesn’t work properly after the camera recovers from the sleep mode or power off.

https://www.tamron.jp/en/support/

New firmware

We are pleased to inform you that the firmware update for the 17-28mm F/2.8 Di III RXD (Model A046) for Sony E-mount, full-frame mirrorless cameras, is now available. The firmware update is available through Sony E-mount camera bodies.

Please review the information below.

1. Affected model** - 17-28mm F/2.8 Di III RXD (Model A046)
2. Firmware version - Ver.3
3. Improvements
   • 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-6
4. How to Update
   The lens firmware can be updated using cameras that support this lens firmware update. Tap for more details.
5. How to Check your Lens Firmware Version
   From your camera's menu screen, please select "Setup" then "Display version." Tap for more details

Test

https://www.opticallimits.com/sonyalphaff/1105-tamron1728f28e