I recently purchased the Lumix GH4 and I am having problems with indoor flash photos. I have a zoom lens that I rarely use, a Leica DG NOCTICRON 42.5mm/F1.2, and a Leica SUMMILUX 25mm f/1.4 Lens.
Regardless of the lens, the shutter speed is almost always too long and the photos are blurred when I use the flash with iA mode, like 1/5 sec or 1/20 sec. The lenses work well without a flash in low light conditions, but sometimes a flash is needed.
Should I not use the iA mode with the built-in flash?