Panasonic, together with a colleague in the Olympus workshop, is rightfully considered the founder of the mirrorless design of cameras with interchangeable optics. The cameras of these two Japanese brands use a Micro 4/3 matrix with a 2x crop factor. However, Olympus mirrorless cameras focus on photo capabilities, and Panasonic G—series cameras focus on advanced video shooting.

There are several branches within the G-family of Panasonic mirrorless mirrors. The main "trunk" of the series is formed by basic G—camera models akin to DSLRs in size and appearance. Compact mirrorless mirrors with thin and flat bodies belong to the GX sub-series. And serious tools for professional video production are for the GH Guard. Until about 2016, Panasonic mirrorless series had even more, but GM and GF have already sunk into oblivion.

Panasonic mirrorless cameras are very often used in the genre of professional video production.

In most G-squad cameras, the matrix is fixed on a movable stabilizing platform. They can also boast of recording 4K video with fine-tuning of the shooting parameters, the presence of inputs for connecting a microphone and headphones (with rare exceptions), fast and silent hybrid autofocus, advanced ergonomics and an extensive list of wireless communications.