I am curious to see what type of improvement this is has in terms of lowlight ability. Personally speaking for me this was the biggest downfall for the GH4. The GH5 with 10bit 422 4K internally, .76 EVF/3,680 resolution, waveform monitor and vectorscope is a HUGE upgrade. The ability to have all of those features without carrying around an external recorder/monitor will sway a lot of people into purchasing the GH5.

There are couple of red flags though. The biggest one being that the firmware will come later on down the line. Wonder how much that will cost Cha-Ching $$$$$. I am also curious as to the the actual improvement in quality with the firmware update once all the hype settles down. I don't know maybe I am a bit pessimestic after all the hype with VLOG which IMO was a waste of time and just added more noise to the image after everything is said and done. Also look at the ALL-Intra on the GH4 was is it really that great all things considered?

All in all though seems like a great camera. Personally I wouldn't purchase one until after all of the firmware updates are done along with some real reviews of the camera. Until the firmware updates come seems like it is really not worth buying if you already have a GH4.

The first GH5 low light test I could find (in the second part of the video):

Wow... I am kinda impressed with the "6K photo 30fps" mode for photography. 18 megapixel stills from the 6K photo mode not to shabby. Also I must say that the autofocus on the GH4 was really good so I can imagine how good it will be with the GH5. I am talking about AFS single point, point to point focusing. M/43 does not work for me in terms of photography but I am sure this camera will be great for all of the people that it does work for.

@liork it's the same pixel count. GX8, Pen-F, E-M1 II and GH5, they all have a 5184 x 3888 pixel sensor. Panasonic saying 20.3MP and Olympus saying 20.4 is just a different in how they made the pixel approximation but both sensors have the exactly same pixel count.

@Azo Thanks for the footage link. For some reason the 30P footage won't play with Vegas 14, but the 60P does and it actually looks incredible with Filmconvert LUTs. They seemed to have improved V-Log with the 8 bit, it's gorgeous when graded.

Yeah, works with media players but no dice in the editor. Very odd.

@cas1 I am not sure this is not my footage but I think it was shot at ISO 400 which would be the base ISO for the GH5.

I am on OSX 10.11.6 El Capitan. I transcoded all the footage to ProRes HQ and everything plays and edits really smooth on my X99 with GTX980 hackintosh ;-) I can play all of the downloaded footage with VLC and everything is smooth with no hiccups.

I take that back the 60p footage jumps around in VLC but plays back smoothly with Quicktime Player. The 24p and 30p footage will not playback with the Quicktime player but plays back smoothly with the VLC player. All of the footage once converted to ProRes works fine for me on my system. Another interesting note all of the footage seems to be right at about the 150mbs mark.

I wonder whether Depth-From-Defocus is still unavailable in video more, where it would be most useful for a decent continous auto-focus...

Does it magnify for focus while recording?

2 of the guys that shot with the GH5 plus Nick Driftwood replied to me that they think the new firmware update of 400Mbps All-I will be H.265. Nick even said that since HEVC is 2x more efficient it would be like an All-I 800Mbps in the GH4 with an H.264 codec.

Nothing official by Panasonic though. But it seems that the GH5 will indeed have both H.264 and H.265 options for 4K videos. I wrote a piece talking about wanting HEVC All-I but I didn't actually believe Panasonic would do that but it seems that they will. Having options is always good, plus having HEVC means it's quite future proof when editing and computers catch up to that better.

@estarkey7 I watched a video where they stated that you can record 30p for an unlimited amount of time.