It's on the original Pana press release linked above.
Panasonic today announced that it has developed a new Digital Single Lens Mirrorless (DSLM) Camera LUMIX GH5 that is capable of recording smooth, high-precision 4K 60p/50p and faithful 4:2:2 10-bit 4K video*3 for the first time in the world*1.
*3 In 4K/30p, 25p, 24p, 23.98p video recording.
Thanks. Great for the 24p "film look" shooter then, but not great for the 50/60p "TV look" shooter. Still, it's a lot to offer in camera. I hope they don't go too far with the compression to make 4:2:2 10-bit 4K fit into a reasonable bit rate/file size. I wonder if any of the 1080 modes will have it.
Thanks. So in my case, the 4:2:2 10bit is rather irrelevant, since I'd only want to shoot 4k 60p underwater. I'm not as crazy for that as others are anyway. 4:2:0 8-bit serves me well enough for YouTube with careful white balance and color correction.
So the card is still an SD card variant, and not something big and super expensive. No problem with that.
Thanks - good thoughts. I had not considered the upgrade to the computer. I have a pretty good one, but might need more power going to 4K. When I was in Roatan last February, I had to rent a camera for a few days (battery failure, and forgot to pack a spare...). It was either an AX-100 or RX-100, I can't remember which, but I was rather unimpressed with the WB. I'm still struggling to get some of the footage properly color corrected, and doubt that I will be able to even use some of it due to the WB issues. I wish I could remember which camera it was.
Thanks very much for the advice.
Maybe you can read that from the metadata of the file. I do that in Sony Vegas Pro with an extension called Show Recording Data, but you there would be other free tools to do it outside of Vegas like EXIF Viewer(?). I guess maybe Adobe apps (Lightroom? P Pro?) show it in the file properties.
As to the main question, it's very difficult at the moment to make recommendations. I'm not happy with the GH4 for run-and-gun style underwater shooting, which is what I do, for many reasons. I badly want to go to Raja Ampat but I actually turned down a trip this coming February partly because I thought I would be frustrated by the camera. And I think that would be true for most of the "stills" cameras that have video features.
On the other hand, the GH4 is great for tripod-based macro video, once you've worked out a working focus procedure. So it depends what you want to shoot.
The camera that interests me most for wide angle is still the Sony Z100 in a Gates housing with a SWP44 lens that Josh Jensen shot this with. A 4K 60p ENG camera with a built-in lens, ND filters, proper auto-focus, nice white balance, proper zoom, worldwide support etc.. But it's so old now! Maybe we'll get a Z200 one day. Who knows...