Dear users and potential purchasers of Tamron products.
Thank you for using Tamron products.
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.
17-28mm F/2.8 Di III RXD (Model A046)
Ver.3
This update improves the following issue:
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
Tap for more details.
The lens firmware can be updated using cameras that support this lens firmware update.
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From your camera’s menu screen, please select "Setup" then "Display version."
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Please contact your local Tamron distributor.
http://tamron.in/support/authorized-distributors/