The Panasonic LUMIX G 20mm F1.7 ASPH is a highly regarded standard prime lens for Micro Four Thirds with a 40mm full-frame equivalent field of view and bright F1.7 aperture in a pancake-style body. It offers excellent low-light performance and sharp optics in an exceptionally compact form. The lens is a flagship of the LUMIX G pancake prime series.
Product released: September 17, 2009
Latest firmware version
Version 1.1, released November 25, 2009
Last checked for updates: Oct 31, 2026 03:57 UTC
What's new in version 1.1
Improved AF(Auto Focus) performance in Motion Picture recording.
The Panasonic LUMIX G 20mm F1.7 ASPH is a highly regarded standard prime lens for Micro Four Thirds with a 40mm full-frame equivalent field of view and bright F1.7 aperture in a pancake-style body. It offers excellent low-light performance and sharp optics in an exceptionally compact form. The lens is a flagship of the LUMIX G pancake prime series. It was originally released on September 17, 2009.
What is the latest firmware version of Panasonic LUMIX G 20mm F1.7 (H-H020)?
The latest firmware version of Panasonic LUMIX G 20mm F1.7 (H-H020) is 1.1. It was released on November 25, 2009.
What changed in Panasonic LUMIX G 20mm F1.7 (H-H020) firmware version 1.1?
Panasonic LUMIX G 20mm F1.7 (H-H020) firmware version 1.1 includes the following changes: Improved AF(Auto Focus) performance in Motion Picture recording.
Where can I download the latest Panasonic LUMIX G 20mm F1.7 (H-H020) firmware?
Details and download instructions for the latest Panasonic LUMIX G 20mm F1.7 (H-H020) firmware (version 1.1) are on Panasonic's official release page: https://av.jpn.support.panasonic.com/support/global/cs/dsc/download/fts/dl/h020.html