Panasonic Lumix 14–140mm lens

The Panasonic Lumix Vario 14-140mm is a zoom lens for Micro Four Thirds system cameras; the first version, distinguished by its maximum aperture of, served as the bundled kit lens for the Panasonic Lumix DMC-GH1, and later GH2; for other cameras, it was available for separate purchase. As the Panasonic GHn camera line are designed for both still photography and video, the lens has a fast, quiet autofocus motor and a stepless aperture diaphragm, hence the "HD" branding.

It was discontinued in 2013 after Panasonic released a faster, smaller lens covering the same focal length range with a maximum aperture of. The second version was replaced by a new version in 2019, which included a gasket for weather and dust resistance, but was unchanged optically.

History
The original lens exhibited some softness in the corners at maximum aperture for the extreme wide and telephoto focal length settings, which could be mitigated by stopping down to. It includes four aspherical lens elements and two extra-low dispersion elements. In-camera distortion correction is used to compensate for barrel distortion and vignetting.

The updated, smaller lens was released in April 2013. In testing, the newer lens was sharper in the corners and showed a bit more barrel distortion over the zoom range, while the older lens was sharper in the center and had virtually no distortion at focal lengths between 18 and 140mm. The updated lens was revised in 2019 to add dush and splash resistance.