Re: Advantages of 4K for soloshooters
 

Does your gh4 make noise? :) Mine is silent when I shoot video.

About lowlight, I have no issue shooting at 3200 iso all the time at evening receptions or 6400 when needed, 4K downscaled to 1080p makes the grain smaller as well and the pixel peepers will see the noise but I don't on a big tv from a normal viewing distance. I use a 12mm f2.0 lens which is wide open most of the time on my steadicam and it gives me manageable dof, it's rare I have focussing issues and for other lowlight shots I use a 25mm f1.4 and a 75mm f1.8 on a tripod which are basically my go to lenses for the entire reception.

I"m sure a c100 is cleaner at 12800 iso compared to 6400 on the gh4 and the a7s is a class on it's own but I have not had any lowlight issues this year, also not at candle lit only venues, except when they turn out all the light during the first dance with only candlelights on the table, normally the DJ still puts some light on the couple which is sufficient for me but I have had one occasion where that did not happen and for those occasions I use my own videolight on a lightstand to give me a bit of fill light, that's still a lot cheaper then getting a 3k+ a7s :)

Re: Advantages of 4K for soloshooters
 

Ideally you should have NR turned all the way down. Still seems like there's some going on, and I hope Panasonic tweaks that a bit. I think the noise looks "better" with NR turned all the way down because the NR process just doesn't look that great. Neat Video in post gives far better results.