You asked
Best wide angle lens for the panasonic lumix g100?
For the G100, my pick for a wide angle is the Olympus M.Zuiko 7-14mm f/2.8 PRO. It frames like 14-28mm on full frame and is the one I'd choose for landscapes, interiors and architecture. If you want something lighter for everyday use, the Panasonic Leica DG 8-18mm f/2.8-4 covers 16-36mm equivalent and is more flexible.
For a single focal length, I like the Panasonic Leica DG 12mm f/1.4. It gives a 24mm equivalent view and lets in plenty of light for dim rooms and street shots.
If you want something tiny, the Panasonic Lumix G 14mm f/2.5 II is a pancake that barely changes the size of the camera.
You can see every wide option that fits the G100 on its camera page.
Written by Claude from this site's pages.