Panasonic is preparing to release a series of firmware updates bringing new features and capabilities to its Lumix S Series full-frame mirrorless cameras — DC-S1H (Ver.2.4), DC-S1 (Ver.2.0), DC-S1R (Ver.1.8), DC-S5 (Ver.2.2) — and the Micro Four Thirds box-style mirrorless camera DC-BGH1 (Ver.2.0). The company…