The Panasonic LUMIX S PRO 16-35mm F4 is a professional wide-angle zoom lens for the L-mount full-frame system, developed jointly with Leica Camera AG for highest optical quality. It covers 16-35mm with a constant F4 aperture, weather-sealing to -10°C, and a 9-blade circular diaphragm. The lens is part of the flagship LUMIX S PRO series.
Product released: March 29, 2019
Latest firmware version
Version 2.0, released March 10, 2026
Last checked for updates: Oct 31, 2026 15:58 UTC
What's new in version 2.0
When set to AF mode, preferred functions can now be assigned to the focus ring.
- Compatible models as of Mar. 10, 2026: DC-S1RM2, DC-S1M2, DC-S1M2ES, DC-S5M2, DC-S5M2X, DC-S9
The rotation direction of the focus ring can now be selected according to your preference.
- Compatible models as of Mar. 10, 2026: DC-S1RM2, DC-S1M2, DC-S1M2ES, DC-S5M2, DC-S5M2X, DC-S9
LatestUpdate has tracked 3 versions of Panasonic LUMIX S PRO 16-35mm F4 (S-R1635) firmware, released between January 10, 2023 and March 10, 2026.
Version 2.0 - March 10, 2026: When set to AF mode, preferred functions can now be assigned to the focus ring. - Compatible models as of Mar. 10, 2026: DC-S1RM2, DC-S1M2, DC-S1M2ES, DC-S5M2,…
Version 1.2 - January 23, 2025: Improved AF performance while zooming. - Compatible product as of Jan.23, 2025 : DC-S5M2, DC-S5M2X, DC-S9
What is Panasonic LUMIX S PRO 16-35mm F4 (S-R1635)?
The Panasonic LUMIX S PRO 16-35mm F4 is a professional wide-angle zoom lens for the L-mount full-frame system, developed jointly with Leica Camera AG for highest optical quality. It covers 16-35mm with a constant F4 aperture, weather-sealing to -10°C, and a 9-blade circular diaphragm. The lens is part of the flagship LUMIX S PRO series. It was originally released on March 29, 2019.
What is the latest firmware version of Panasonic LUMIX S PRO 16-35mm F4 (S-R1635)?
The latest firmware version of Panasonic LUMIX S PRO 16-35mm F4 (S-R1635) is 2.0. It was released on March 10, 2026.
What changed in Panasonic LUMIX S PRO 16-35mm F4 (S-R1635) firmware version 2.0?
Panasonic LUMIX S PRO 16-35mm F4 (S-R1635) firmware version 2.0 includes the following changes: When set to AF mode, preferred functions can now be assigned to the focus ring.
- Compatible models as of Mar. 10, 2026: DC-S1RM2, DC-S1M2, DC-S1M2ES, DC-S5M2, DC-S5M2X, DC-S9
The rotation direction of the focus ring can now be selected according to your preference.
- Compatible models as of Mar. 10, 2026: DC-S1RM2, DC-S1M2, DC-S1M2ES, DC-S5M2, DC-S5M2X, DC-S9
Where can I download the latest Panasonic LUMIX S PRO 16-35mm F4 (S-R1635) firmware?
Details and download instructions for the latest Panasonic LUMIX S PRO 16-35mm F4 (S-R1635) firmware (version 2.0) are on Panasonic's official release page: https://av.jpn.support.panasonic.com/support/global/cs/dsc/download/ff/dl/r1635.html
How often does Panasonic release firmware updates for Panasonic LUMIX S PRO 16-35mm F4 (S-R1635)?
We have tracked 3 firmware versions of Panasonic LUMIX S PRO 16-35mm F4 (S-R1635).
Is Panasonic LUMIX S PRO 16-35mm F4 (S-R1635) still receiving firmware updates?
Yes, Panasonic LUMIX S PRO 16-35mm F4 (S-R1635) received a firmware update within the last year. The most recent version is 2.0.