I chose the Panasonic Lumix DC-GH5 camera in Compact Camera Meter then selected the Olympus M.Zuiko Digital ED 12-40mm f/2.8 Pro, Olympus M.Zuiko Digital ED 17mm f/1.2 Pro, Olympus M.Zuiko Digital ED 25mm f/1.2 Pro and Olympus M.Zuiko Digital ED 45mm f/1.2 Pro lenses to compare relative size. They look well-balanced to me. I use my 12-40mm zoom on my GX8, GH4 and have used it on a review loaner GH5 for video and stills, and have no complaints.

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