Despite preferring the Canon full frame system, there are plenty of occasions when I prefer a lighter option. I first starting using the Panasonic GH4 back in 2014 and was very impressed with its versatility and light weight compared to the Canon. I primarily take a GH5 when I'm carrying a hiking backpack and want to reduce the stress on the old knees...

 

Panasonic GH5

Panasonic GH4

Metabones T Speed Booster XL 0.64 Adaptor

Olympus M. Zuiko Digital ED 12mm lens

Olympus M. Zuiko Digital ED 12-40mm lens

Panasonic Lumix G X Vario 35-100mm lens

Panasonic Leica DG Vario-Elmar 100-400mm lens

Lee Seven5 Filter Holder

Lee Seven5 Big Stopper

Lee Seven5 Little Stopper

Lee Seven5 0.9 ND soft graduated filter

Lee Seven5 0.6 ND soft graduated filter

Vello Shutterboss II Timer Remote Switch