Service News

Service News

Notice about Firmware Update for Tamron 20mm/24mm/35mm F/2.8 Di III OSD M1:2 (Model F050, F051, F053)

Dear users and potential purchasers of Tamron products.

Thank you for using Tamron products.

We are pleased to inform you that firmware updates for our fixed focal lenses 20mm/24mm/35mm F/2.8 Di III OSD M1:2 (Model F050, F051, F053) for Sony E-mount, full-frame mirrorless cameras, are now available. The firmware updates are available through Sony E-mount camera bodies.

Please review the information below.

Affected models

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)

Firmware version

Ver. 2


This update improves the following issue which may rarely occur.

If the viewfinder (monitor) image gets severely out of focus, the AF operation stops in the middle and the focus indicator lights up even though it is not in focus.

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

Please find the Updates below:

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)

How to Update

The lens firmware can be updated using cameras that support this lens firmware update.

Tap for more details.

If you have any problems with the update software, please contact the service of your local distributor.

Notes on data protection:
We process your personal data exclusively for the purpose of product update and for the duration of the update. Further details on data protection can be found at:

How to Check your Lens Firmware Version

From your camera's menu screen, please select "Setup" then "Display version."

Tap for more details.

Inquiries regarding this matter

If you should have any problems with the update-software, please send us a mail with your contact details (name, phone number, serial number of your lens) to the following address:


We will contact you as soon as possible with a detailed explanation of how you can send your lens to us free of charge for the software update.

Note: This overwrite service will only apply to products which were legally and officially imported into the EU, Andorra, Gibraltar, Iceland, Norway, Switzerland, Turkey or Ukraine, and distributed by an authorized Tamron Europe distributor (see also: Grey market).