24mm F/2.8 Di III OSD M1:2 F051 SONY E firmware update

When downloading the file to install this update software, we ask that you read the following computer requirements and carefully read and accept the following software usage agreement. The installation begins when you launch the downloaded file.

Once the lens has been updated to new Version, it is not possible to revert to older firmware versions.

Update manual

If firmware update fails

Update Information

Version Details Last Update Latest Firmware
3 This update improves the following issue.

The focus mode may switch from AF to MF during video recording with the SONY a7IV.
March 28, 2022

for Windows


for Mac

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.



Thank you very much for your purchase of our Product.
When you download the file for installing the software, please read the following agreement carefully. If you click the "agree" button and start downloading the file, you are deemed to have accepted this agreement. If you do not agree with this agreement, you may not download any files.

Please contact your local Tamron distributor.


This SOFTWARE USAGE LICENSE AGREEMENT ("THIS AGREEMENT") constitute a legal agreement between you and TAMRON Co., Ltd. ("TAMRON") setting forth the terms and conditions governing your downloading of the software provided through the Website (including various electronic data stored in the download files, “THIS SOFTWARE”) for TAMRON lens mentioned above ("THIS PRODUCT").

If you click the "agree" button, THIS AGREEMENT is deemed to have been concluded.

(1) THIS SOFTWARE is owned by Tamron Co., Ltd.("TAMRON") and/or its licensors. The copyright and all the other rights to THIS SOFTWARE are reserved. THIS SOFTWARE are licensed, not sold or transferred, to you for use under terms of THIS AGREEMENT.
(2) THIS AGREEMENT allows you to install and use THIS SOFTWARE in THIS PRODUCT owned by you via your computer. TAMRON may acquire information needed for the identification of the computer in which THIS SOFTWARE is installed for being able to prevent unauthorized copying or the purpose of improvement of THIS SOFTWARE.
(3) Notwithstanding stated in section (2) of Article 2, you may make one copy of THIS SOFTWARE for backup purposes only.

(1) You shall not sublicense, transfer, sell, distribute, rent, lease or lend THIS SOFTWARE (including a copy for backup) or any part of thereof for a fee or non-fee.
(2) You shall not copy, decompile, reverse engineer, disassemble, modify or create derivative works of THIS SOFTWARE or any part thereof.
(3) You shall not modify, remove or delete any copyright notices, trademarks and the other intellectual property notices contained in THIS SOFTWARE.

THIS SOFTWARE is provided “as is” and TAMRON hereby disclaim all warranties and conditions with respect to THIS SOFTWARE, either express, implied or statutory, including, but not limited to, the implied warranties and/or conditions of merchantability of fitness for a particular purpose and non-infringement of third party rights. In the event of TAMRON’s negligence (except in case of gross negligence) for the content you receive any losses, damages or expenses arising out of or in any way related to the use or inability to use THIS SOFTWARE, TAMRON shall be liable to you for direct and normal damages only.

TAMRON will support at its sole discretion in case that you cannot use THIS SOFTWARE due to a failure of THIS SOFTWARE. Provided, however, this support does not guarantee or warrant that any or all malfunction of THIS SOFTWARE can be successfully fixed. TAMRON may terminate this support at any time.

TAMRON may, at its sole discretion or at the discretion of TAMRON's licensor without notice, modify, amend, update, stop or terminate to provide THIS SOFTWARE at any time, and such are subject to the terms of THIS AGREEMENT.

(1) TAMRON may terminate THIS AGREEMENT without notice from TAMRON if you fail to comply with any term(s) of THIS AGREEMENT. Upon the termination of THIS AGREEMENT, you shall cease all use of THIS SOFTWARE, destroy all copies for backup and delete electronic data from your computer full or partial of THIS SOFTWARE.
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THIS AGREEMENT shall be governed by and construed in accordance with the laws of Japan. THIS AGREEMENT shall not be governed by United Nations Convention on Contract for the International Sales of Goods. Any dispute arising from or in connection with THIS AGREEMENT shall be subject to the exclusive jurisdiction of the Tokyo District Court.

If, for any reason, a court of competent jurisdiction finds any provision, or portion thereof, to be unenforceable, the remainder of THIS AGREEMENT shall continue in full force and effect.

THIS AGREEMENT constitutes the entire agreement between you and TAMRON with respect to the use of THIS SOFTWARE and supersedes all prior or contemporaneous understandings regarding such subject matter.


(1) TAMRON may change the THIS AGREEMENT if it is necessary to change THIS AGREEMENT due to amendment of laws and regulations, changes in social conditions, or other circumstances.
(2) In the event that TAMRON changes THIS AGREEMENT pursuant to the provisions of the preceding paragraph, TAMRON shall determine the effective date, and shall notify the following items by posting on Tamron’s website or other methods by the effective date.
② Contents of THIS AGREEMENT after change
③ Effective date

Any translation of THIS AGREEMENT is made for local requirements and in the event of a dispute between the Japanese and any non-Japanese versions, the Japanese version of THIS AGREEMENT shall govern.

Supported OS

Windows MacOS Hardware requirements

Windows® 11
Windows® 10
Windows® 8.1

mac OS 10.13 / 10.14 / 10.15
*2021/5/11 Software for macOS 10.15 is now available

At least 200MB free space on the hard disk
At least 512MB free space in the memory (RAM)

*Perform the update after closing other application software.
*Disable the computer's sleep setting.

  • Perform the update after closing other application software.
  • Disable the computer's sleep setting.
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