The Panasonic LEICA DG SUMMILUX 25mm F1.4 II ASPH is the second-generation standard prime lens for Micro Four Thirds, offering a 50mm full-frame equivalent field of view with F1.4 maximum aperture. It features an updated optical design, weather-sealing, and a 7-blade circular diaphragm with LEICA-certified quality. The lens is part of the LEICA DG SUMMILUX prime series.
Product released: February 24, 2022
Latest firmware version
Version 1.2, released March 1, 2022
Last checked for updates: Oct 31, 2026 03:53 UTC
What's new in version 1.2
It is possible to control AF operation by pressing the shutter button halfway, or by pressing the AF-ON button, when [200.00p] is set in high frame rate video mode.
- Compatible products as of March 1st, 2022 : DC-GH6
LatestUpdate has tracked 2 versions of Panasonic LEICA DG 25mm F1.4 II (H-XA025) firmware, released between June 8, 2021 and March 1, 2022.
Version 1.2 - March 1, 2022: It is possible to control AF operation by pressing the shutter button halfway, or by pressing the AF-ON button, when [200.00p] is set in high frame rate video…
Version 1.1 - June 8, 2021: [Focus Ring Control] is available by this firmware update. (in case of the usage of Camera with this function) Improved AF performance in FPS 24p mode(24.00p/2…
What is Panasonic LEICA DG 25mm F1.4 II (H-XA025)?
The Panasonic LEICA DG SUMMILUX 25mm F1.4 II ASPH is the second-generation standard prime lens for Micro Four Thirds, offering a 50mm full-frame equivalent field of view with F1.4 maximum aperture. It features an updated optical design, weather-sealing, and a 7-blade circular diaphragm with LEICA-certified quality. The lens is part of the LEICA DG SUMMILUX prime series. It was originally released on February 24, 2022.
What is the latest firmware version of Panasonic LEICA DG 25mm F1.4 II (H-XA025)?
The latest firmware version of Panasonic LEICA DG 25mm F1.4 II (H-XA025) is 1.2. It was released on March 1, 2022.
What changed in Panasonic LEICA DG 25mm F1.4 II (H-XA025) firmware version 1.2?
Panasonic LEICA DG 25mm F1.4 II (H-XA025) firmware version 1.2 includes the following changes: It is possible to control AF operation by pressing the shutter button halfway, or by pressing the AF-ON button, when [200.00p] is set in high frame rate video mode.
- Compatible products as of March 1st, 2022 : DC-GH6
Where can I download the latest Panasonic LEICA DG 25mm F1.4 II (H-XA025) firmware?
Details and download instructions for the latest Panasonic LEICA DG 25mm F1.4 II (H-XA025) firmware (version 1.2) are on Panasonic's official release page: https://av.jpn.support.panasonic.com/support/global/cs/dsc/download/fts/dl/xa025.html
How often does Panasonic release firmware updates for Panasonic LEICA DG 25mm F1.4 II (H-XA025)?
We have tracked 2 firmware versions of Panasonic LEICA DG 25mm F1.4 II (H-XA025).