LUMIX G 100-300mm F4.0-5.6 firmware v1.2
Panasonic Lumix · Released Jan 25, 2012 · First seen by GearPulse Jul 5, 2026
What's in this update
Improved the stability of O.I.S.(Optical Image Stabilizer).
GearPulse never hosts firmware files — always download from the official source.
Get it from Panasonic Lumix →