The Panasonic LUMIX S 18mm F1.8 is a compact wide-angle prime lens for the L-mount full-frame system, offering an 18mm focal length with a bright F1.8 aperture. It features a 9-blade circular diaphragm, weather-sealing, and stepping motor autofocus. The lens is part of the compact LUMIX S prime series alongside the 24mm, 35mm, 50mm, and 85mm companions.
Product released: November 25, 2021
Latest firmware version
Version 2.0, released October 20, 2025
Last checked for updates: Nov 1, 2026 04:01 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 Oct. 20, 2025: 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 Oct. 20, 2025: DC-S1RM2, DC-S1M2, DC-S1M2ES, DC-S5M2, DC-S5M2X, DC-S9
The Panasonic LUMIX S 18mm F1.8 is a compact wide-angle prime lens for the L-mount full-frame system, offering an 18mm focal length with a bright F1.8 aperture. It features a 9-blade circular diaphragm, weather-sealing, and stepping motor autofocus. The lens is part of the compact LUMIX S prime series alongside the 24mm, 35mm, 50mm, and 85mm companions. It was originally released on November 25, 2021.
What is the latest firmware version of Panasonic LUMIX S 18mm F1.8 (S-S18)?
The latest firmware version of Panasonic LUMIX S 18mm F1.8 (S-S18) is 2.0. It was released on October 20, 2025.
What changed in Panasonic LUMIX S 18mm F1.8 (S-S18) firmware version 2.0?
Panasonic LUMIX S 18mm F1.8 (S-S18) 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 Oct. 20, 2025: 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 Oct. 20, 2025: DC-S1RM2, DC-S1M2, DC-S1M2ES, DC-S5M2, DC-S5M2X, DC-S9
Where can I download the latest Panasonic LUMIX S 18mm F1.8 (S-S18) firmware?
Details and download instructions for the latest Panasonic LUMIX S 18mm F1.8 (S-S18) firmware (version 2.0) are on Panasonic's official release page: https://av.jpn.support.panasonic.com/support/global/cs/dsc/download/ff/dl/s18.html