Metabones EF-E Mount T Mark 4 Firmware Update: What You Need to Know

The Metabones EF-E Mount T Mark 4 Firmware Update brings some exciting improvements for photographers and videographers. This update aims to enhance the performance of your EF-E Smart Adapter and Speed Booster, especially when paired with Sigma and Tamron lenses. Whether you’re using the a7s II or a7R II, this firmware update promises to speed up autofocus performance and provide better overall functionality.
In this post, we’ll dive into all the changes and improvements made with this firmware update. From faster wake-up times after auto power off to fixing minor bugs, the Metabones EF-E Mount T Mark 4 Firmware Update is sure to make your gear work even smoother. If you’re a fan of seamless camera operations, you’ll want to know everything about these new updates.
How the Metabones EF-E Mount T Mark 4 Firmware Update Improves Autofocus
The Metabones EF-E Mount T Mark 4 Firmware Update offers significant improvements to autofocus performance. If you’re using the Sony a7s II or a7R II, you’ll notice faster autofocus speeds, especially with supported Sigma and Tamron lenses. This update ensures that autofocus is quicker and more accurate, which can be a big help in capturing fast-moving subjects.
With this update, the camera’s autofocus system is enhanced, which means fewer missed shots and better overall performance. It’s particularly useful when shooting fast action or wildlife, where autofocus speed matters the most. The firmware update also ensures that your camera and lenses work together more smoothly, reducing the chances of autofocus lag or errors.
This firmware update helps the Metabones EF-E Mount T Mark 4 work seamlessly with lenses from Sigma and Tamron, making sure autofocus speeds are optimized for different lenses. Photographers who use a variety of lenses will benefit from these improvements, as they won’t have to deal with slow or unreliable autofocus.
Faster Camera Response: What the Metabones EF-E Mount T Mark 4 Firmware Update Brings

One of the key benefits of the Metabones EF-E Mount T Mark 4 Firmware Update is the faster wake-up time from sleep mode. After your camera automatically powers off, it can now wake up more quickly when you press the shutter. This means less waiting around and more time for shooting.
The update also fixes some minor bugs that caused cameras to behave unpredictably. For example, the update fixes the issue of the camera’s menu unexpectedly exiting when you try to open it. This is especially important for those who use their cameras for video production, as it ensures a more stable experience during long shoots.
How the Metabones Firmware Update Enhances Compatibility with Sigma and Tamron Lenses
The Metabones EF-E Mount T Mark 4 Firmware Update greatly enhances compatibility with lenses from Sigma and Tamron. It now ensures that the camera properly identifies lenses like the Sigma 35mm f/1.4 and Sigma 30mm f/1.4 when the camera is set to APS-C/Super35 mode. This makes using these lenses much easier and more reliable.
For Tamron users, the update fixes issues related to the iris in lenses like the Tamron 70-200mm f/2.8 VC. Previously, users might have faced issues with the iris not functioning correctly after turning the camera off and on. Thanks to the firmware update, this problem is now resolved, leading to a more dependable shooting experience.
By improving compatibility with these third-party lenses, the firmware update ensures that you can use a wider variety of lenses without worrying about technical issues.
Troubleshooting Common Issues Fixed by the Metabones EF-E Mount T Mark 4 Firmware Update

The Metabones EF-E Mount T Mark 4 Firmware Update resolves a number of common issues faced by photographers. One major fix is related to the camera’s iris operation, specifically for Tamron lenses like the 28-300mm f/3.5-6.3 VC. Before the update, users experienced problems with iris operation when switching to Advanced Mode. Now, this issue is fixed, allowing smoother operation.
Another important fix addresses the issue of the camera menu unexpectedly exiting when the user presses the menu button. This problem often frustrated users, especially during shoots when quick access to settings was needed. With the new firmware update, the menu now behaves more predictably, saving you time and frustration.
Conclusion
The Metabones EF-E Mount T Mark 4 Firmware Update is an essential upgrade for photographers who want to get the most out of their gear. Whether you’re using the a7s II, a7R II, or a variety of lenses, this update brings much-needed improvements to autofocus, camera response, and compatibility. By installing this firmware, you can ensure that your equipment works more efficiently and reliably.
Overall, the firmware update helps you capture better images with fewer technical issues. The improved autofocus speed and faster wake-up times make your camera more responsive, while the fixes to lens compatibility issues make your shooting experience smoother. If you haven’t already, it’s worth installing the update to enhance your camera’s performance.
FAQs
Q: What does the Metabones EF-E Mount T Mark 4 Firmware Update fix?
A: The update fixes autofocus speed, camera wake-up times, lens compatibility issues, and the camera menu exiting unexpectedly.
Q: How do I install the Metabones EF-E Mount T Mark 4 Firmware Update?
A: You can install the update by downloading the firmware from the Metabones website and following the installation instructions for your device.
Q: Does the firmware update improve autofocus performance?
A: Yes, the update enhances autofocus speed, especially when using lenses like Sigma and Tamron with the a7s II and a7R II.
Q: Will the Metabones EF-E Mount T Mark 4 Firmware Update work with my Sigma or Tamron lens?
A: Yes, the update improves compatibility with several Sigma and Tamron lenses, including the Sigma 35mm f/1.4 and Tamron 70-200mm f/2.8.
Q: Is the Metabones EF-E Mount T Mark 4 Firmware Update free?
A: Yes, the firmware update is available for free on the Metabones website.