Global Shutter Synchronization: How Profoto and Elinchrom are Adapting to the Sony A9 III
Lighting manufacturers Profoto and Elinchrom have achieved compatibility between their flash systems and the Sony A9 III. This development leverages the Sony A9 III’s global shutter, which records all pixels simultaneously, allowing for flash synchronization without the flash losing effect.
Why Global Shutter Changes Flash Photography
Because the Sony A9 III can take pictures with a shutter speed as short as 1/80,000 second, it is necessary to time the flash exactly. This is what Sony has helped Profoto and Elinchrom with.

A global shutter means that all pixels are read at the same time.
Profoto Firmware Compatibility
Profoto has confirmed that a wide range of its current lighting ecosystem is now compatible with the Sony A9 III when paired with the Profoto Connect Pro trigger after a firmware update. According to Profoto, the compatible models include the A10, A2, B20, B30, D30, Pro-D3, Pro-B3, and Pro-11. Once updated, users gain access to TTL flash automation while operating in the camera’s Freeze mode.
Elinchrom Transmitter PRO X Integration
Elinchrom says that the Elinchrom Transmitter PRO X should work with shutter speeds up to 1/80,000 second if one has installed firmware version 1.4. However, Elinchrom notes that synchronization is not 100-percent perfect if the flash is set to high power output levels. Users are encouraged to download the update from the provided link.
Comparative Sync Performance
While both brands now support the A9 III, their implementation details differ. Profoto focuses on integrating TTL flash automation within the Freeze mode across its lineup. Conversely, Elinchrom’s implementation with the Transmitter PRO X carries a specific performance warning regarding power settings.
Frequently Asked Questions
- Do I need a new flash for the Sony A9 III? No, current Profoto and Elinchrom models are compatible via firmware updates.
- Is HSS still necessary with the Sony A9 III? A global shutter allows one to use flash with all shutter speeds without the flash losing effect.
- How do I update my flash firmware? You must visit the manufacturer’s website.
- Does flash power affect performance at 1/80,000s? According to Elinchrom, synchronization is not 100-percent perfect if you have the flash on high power.
Are you shooting sports or high-speed action with the Sony A9 III? Share your experiences with these firmware updates in the comments below, or subscribe to our newsletter for more technical updates on camera gear.
