All the above images were shot with a Panasonic Lumix GX9 plus 25mm f/1.7 lens. This combination is an example of what m4/3 was once all about - small, light and high quality. Why Panasonic are attempting to eat into the pro DSLR market with their excellent (but heavy and pricey) S1 range is beyond me. And to some extent are ignoring m4/3. Personally, if I owned a Nikon or Canon top of the range DSLR, why on earth would I buy an S1/R? It may have better video, but TV programmes and even some movie footage has been shot with Nikon and Canon DSLR's. Is the S1/R reliable and will last for 100.000's of images? Who Knows. And where are the lenses? It's an unproven system and no matter what the bought and paid for review sites say, Panasonic are still not regarded as 'serious' camera manufacturer for those who who make a living from photography.
I however can afford to experiment and I don't put my cameras through anything close to the workload of my fellow professionals who need a robust reliable camera for their daily assignments. So the GX9 works for me. Incidentally the grip is a 3D printed one I found on ebay. It allows access to the battery card slot without taking it off the camera, which is NOT the case with the Panasonic one.
