I’ve had a c100 Mkii for over 2 years and its definitely earned its keep for me.
However, having recently acquired a GH5 with metabones speedooster, it makes me want to throw the C100 Mkii on the rubbish tip. Not literally of course, bit there is not one single usage situation where I wouldn’t see an advantage to the GH5.
1) Don’t get too sold on the dual pixel AF on the C100 Mkii. Its really NOT all that. It only works in tiny central portion of the frame, its not as good as the version on Canon’s DSLR’s (like the 80D & 5D Mark iv), and what’s worse is Canon deliberately made the face detection available ONLY on 3 slow STM zoom lenses. So its useless in low light.
2) The GH5 with speed booster is genuinely cleaner than the C100 Mkii up to 3200 iso.
3) The GH5 fits better on my gimble.
4) The GH5 waveform monitor shows in the viewfinder.. the C100’s waveform only appears on the LCD.
5) The GH5 has in body stabilisation. So all those fast prime lenses work better on a shoulder rig.
6) The GH5’s colour science is damn near as good as Canon’s, and I mean it!
7) The GH5’s image quality blows the C100 Mkii out of the water when recording in 4K.
8) In 1080p, the C100’s image is comparable.. maybe even a hair nicer… but its limited to 60fps. The GH5 goes up to 180fps, and its usable. Now I have 4K, I wouldn’t ever record in 1080 unless it was for high frame rate stuff… so the GH5 wins again.
9) The GH5 on a shoulder rig isn’t too high like the C100 MkII.
10) Worried about audio… fair point. But the XLR show mount adapter gets you there on the GH5 for an extra £350.
I’d have a C200 in heartbeat, but at nearly £8,000 its completely irrelevant in the presence of a £2300 GH5 + speed booster.
Now don’t get me wrong, the C100 Mkii is nice to work with and I know exactly how to expose stuff nicely on it to get the best from the sensor. But the GH5 is genuinely pretty nice to work with too.
Panasonic have done an amazing job with the GH5. If it comes to a choice in 2017 between the C100 MkII and the GH5… its a no brainer…. get the GH5.