10bit is about colour depth. Not resolution.

Maybe I'm wrong, but all people asking for 10bit 1080p get what they want with 8bit 4k - its just one small conversion programm in between, but when you are doing serious editing you want to transcode to Prores,... anyway.

How?

4k = 3840 x 2160 = 2 x 1920 x 2 x 1080 = 2 x 2 x fullHD

2 x 2 = 4 -> 2 extra bits

So, by down sampling every 2 x 2 pixels to one, there is 4x the information which is just the difference between 8bit and 10bit.

I'm interested in this GH3 with 4k - I'm just hoping it has a bigger sensore like the GH2 (not the actual GH3) and that it can be hacked to modify parameters to OUR needs. Oh, and finally getting 100/120fps for slomos!

@Hazna

Whats the purpose to have a soft doing it in camera (with no controls at all of what you're doing and no possibilities to add then again in post lens distortion) when software like Nuke and PfTrack can do it and can also add back the distortion that was firstly removed?

If Panasonic somehow manage to have raw video plus there in body lens distortion correction it will be imho revolutionary for videographers and film makers.

I think is best option record video in RAW before to 4K in another codec, but sells more the idea about you record at 4K.

When you have a RAW file allows you to give the image more depth, richness of color, give you more details and a number of things you can manipulate.

Manufacturers have sold the idea that 4K is ideal when the 1080 inst totally standardized, but there are resolutions 6K, 8K, 10K, they will always sell the unrealistic need we need more resolution, we will see in 3-5 years telling us that we need a 8K TV and they will talk about the benefits, which also involve investing more in computer equipment that need more processing power and storage.

4:2:2 and 10 bit sounds awesome. 4K could be useful to down sample and be greatly useful for Keying (or just make a fake 4:2:2 happen if it is 4:2:0). But the price tag scares me a bit, I don't know if I would like to buy a GH4/5 if I had that amount of money to spend with the rumored spec it has.

Perhaps the GH4K will be exactly the same as what we already have in a GH3 but with an additional firmware purchase you can get 4k and some much more. Perhaps all can be unlocked with an external device that also adds in pro features. Or maybe not.

My guess is that they will be using a Sensor that is not that far off from what we've seen from other Panasonic Cameras. I don't expect a huge jump in DR or Low Light capability. My guess is that it's likely the same level as the GX7 in terms of DR and Low Light, but with 4K resolution. I can imagine that Detail/Sharpness lovers will be all over this camera.

I am curious about how the camera will handle color. Will it be more of the same we've seen from other Panasonic Cameras or will they manage to squeeze a bit more smoothness and accuracy out of it?

I think it would better suit most people. Most of us will finish in 2k or 1920x1080 anyways… so down-sampling from a 4K image would look more detailed. You also get a lot smaller file sizes that the Pocket’s RAW. Also…I hope they will have 120fps @ 1080 (proly more like 720 though). I hope dynamic range is up there as well.

More info, just confirming rumors of what Vitaliy posted. Plus the obligatory picture of a GH3 with a 4K sticker on it.

http://www.engadget.com/2014/01/07/panasonics-4k-mirrorless-gh-camera/

• UHD content can be recorded at 200 Mbps, and output in a full live feed via a mini-HDMI port (thanks to ALL-I Intra mode) to display on a computer or record to a hard drive.
• UHS Class 3 card option
• It will be able to simultaneously snap photos while recording video.
• Official release in late February, when it'll arrive with a price tag of $2,000 or less.

@cde Who knows, maybe the next GH will be the first to incorporate VP9 codec, which would half those figures.