Auto exposure and white balance functionality is well supported (accurate). Shutter priority with auto ISO, and Aperture selection and then exposure comp applied, would likely work well enough for the fast moving situations I will task it for. If I use the EM1x, the nubbin control may be a silent option for exp comp (have to check).
It can shoot 200 mbs All-i* FHD. This is the highest bit rate to file type ratio in the EM1 and possibly the clincher. All-i is better for fast moving or constantly changing subjects, especially with high levels of contrast, changing lights (flash/strobe) and busy colours. Long-GOP, used by the G9 looks to be nearly indestinguishable from All-i for normal use (looking at several direct comparisons made by GH5 users), but All-i is still technically better in some circumstances as proven by its inclusion in the GH5.
*All-i creates a fresh, complete frame every frame. IPB (Long-GOP), that the G9 uses, creates a reference frame and only changes to capture what changes within that for the following few frames (a bit like animation, drawing a moving subject over a set background), so it is a much smaller file size overall and ideal for most applications. It looks like Pana has some pretty advanced algarythums for their Long-GOP IPB, only including All-i on the next level GH5.
The quality is more organic looking, less “perfect” than the Pana. The need to reduce sharpness and contrast in the Pana profiles seems less urgent with the Oly, which is good as there are fewer controls. I like the cooler palette for some situations and have found myself leaning towards the harder looking Cine-V with the Pana, which is closer to the Oly than the Pana Natural profile is.
So, what does this all add up to?
The Olympus may be a better run and gun camera with its excellent touch focus and stabilisers. Sound would likely be only used for synching with the Pana or Zooms.
It can also be better for fast movement in contrasty outdoors and for stage or event work when flash or strobes are in use. IPB can loose 10-15 frames in a row if the first catches a bust of flash, common with slow-mo.
The files will be big, but not ridiculously so if I stick to FHD and the camera will be the optional one, not the primary.
The colour and other controls are limited, but this is not insurmountable and I now have two different looks if wanted (especially if lenses are mixed).
I have extra cage options. No wastage and the fun of building 2 rigs :).
Summing up;
My G9 is still the video king. It has the best out of camera quality, the best maximum quality output and is vastly superior as a video-centric camera. This will do the bulk of my static or semi-static work.
The OSMO pocket comes in as the movement and “special angle” specialist. It can go into water, over head, handle fast movement and adds a super smooth gimbal dynamic.
The EM1 mk2 is going to be the moving B-cam, specialising in busier subjects and tougher light,smooth focus transitions and looser hand held work. I will use touch AF, which reduces the screens short comings, full IS with slight crop, with my 17mm which has both great AF and good Bokeh transition for that type of work. Basically, if the G9 is struggling for any reason (focus, stabiliser, format), the EM1 comes in.
Rigging the two up will be fun. The Camvate rig I have coming will likely go on the EM1 as it lacks a dedicated option, with an emphasis on hand held work only, no sound, no monitor. I may switch this up to the EM1x, as that camera only gets used for sport and big events at the moment and has the best stabiliser and focus, so my standard daily routine is untouched.
It will leave me a little short in stills gear, but I can always replace one or the other EM1 at a later date. Probably by the end of this year, an EM5 mk3 or EM1 2/3 will be an option, or I could just use the EM1x a bit more.