Summary
- Panasonic has released firmware updates for four LUMIX cameras.
- The S9 gains MP4 Lite frame rates and expanded Lens Fn controls.
- The S1RII, S1II and S1IIE receive external flash improvements.
- LUMIX Flow 1.7.0 now supports the S9.
Free firmware updates for the Panasonic LUMIX S9, S1RII, S1II and S1IIE are now available, introducing more video options for the S9 and external-flash shooting improvements for the other cameras.
The rollout began on October 13, 2026. LUMIX Flow 1.7.0 has also arrived with support for the S9. These are the releases of changes first announced in September, rather than a new camera launch.
More video recording choices for the LUMIX S9
Firmware 2.1 introduces 4K 60p and 50p recording in MP4 (Lite), alongside Full HD 120p, 100p, 60p and 50p. Those extra frame rates make it easier to tailor footage to different motion and slow-motion needs, while MP4 (Lite) is intended to simplify file handling.
Panasonic has also expanded the functions assignable to the Lens Fn button on compatible lenses, including Aspect Ratio, E-Stabilization, Boost I.S., Image Area of Video, Focus Ring Control, Focus Limiter, Hybrid Zoom, Crop Zoom, Focus Peaking and Video Record. Having these controls on the lens can save menu navigation during fast-moving shoots.
Flash improvements for the S1RII, S1II and S1IIE
The LUMIX announcement supplied with the news lists firmware 1.6 for the S1RII and 1.5 for the S1II and S1IIE. Panasonic reports better shutter release responsiveness, burst-shooting performance with external flash units, and overall operational stability. Because some regional announcements show different version numbering, owners should confirm the latest release on their exact model’s official support page.
That matters to wedding, event and portrait photographers who rely on flash. Panasonic has not supplied comparable measurements here to quantify the reduced lag under specific shooting conditions.
LUMIX Flow 1.7.0 now supports the S9
LUMIX Flow version 1.7.0 adds compatibility with the S9 running firmware 2.1 or newer and introduces usability improvements. The app helps creators plan and organize video productions, from shot lists to capture, supporting a smartphone-based workflow.
Availability and installation
Updates are free through Panasonic Global Support. LUMIX Flow is available through mobile app stores. Before installing, confirm the exact camera model, use a sufficiently charged battery and follow Panasonic’s instructions.
What we think
This is a worthwhile update for S9 creators: more frame rates and more controls accessible from the lens expand what an existing camera can do. They are especially useful when alternating between still photography, quick video clips and social formats.
The S1 updates address something less eye-catching but professionally relevant: responsiveness when working with external flash. Predictable shutter timing matters on an assignment, although without independent performance measurements we cannot put a number on the improvement.
We would also like Panasonic to keep release numbering unambiguous across regional announcements. For working photographers, the definitive reference should always be the download page for their precise camera model.
Frequently asked questions
Are the updates free?
Yes. Panasonic provides these firmware updates free of charge.
What does the S9 need to use LUMIX Flow?
Firmware version 2.1 on the camera and LUMIX Flow version 1.7.0 or later.
What changes for photographers using external flash?
Panasonic reports improved shutter release response and burst shooting with external flash for the S1RII, S1II and S1IIE.
