Such a mod can have a neutral picture with 10+ bits and 4:2:2 maybe.

A similar mod, would be to output raw video frames to a flash drive via USB (3).

The sneaky thing which it appears that cameras often do, is give you the camera image as it appears afteral it has been downgraded and compressed. But there must still be some that give you the image before the compression engine, even in 4:2:2 with greater than 8 bits.

This is a first, a capture box that allows full 1080p 60fps capture. The supplied software only goes up to 30mbs in MP4, but you can record the live view using other software in full uncompressed video. Sucks that you need to tether it, but it looks like it's USB powered so you could take it out on the road and record with a fast laptop.

The gameplay capture scene has been advancing fast. As little as 3 years ago there was really only one player in the market(Hauppauge). Now there are 2 more major players, Elgato and Avermedia, the latter just upped the ante, and for only $180.
http://www.amazon.com/AVerMedia-ExtremeCap-U3-Capture-Uncompressed/dp/B00G9QTUVE/ref=sr_1_1?s=electronics&ie=UTF8&qid=1386491687&sr=1-1&keywords=extremecap+u3

EDIT: After doing some more searching I found this, XCAPTURE-1: http://www.solarisjapan.com/xcapture-1-usb-3-0-hd-capture-unit/?setCurrencyId=1 That can also do full HD at 60fps capture, but it's twice the price of the U3. It's main benefit is it can also capture various SD resolutions with various SD connectors, the Avermedia only has HDMI. This guy did an in depth test of the XCapture in various resolutions from SD to 1080p 60fps. http://www.sixfortyfive.com/streaming/xcapture1.html

I edit my online on that Prores4:4:4 and then I export a DPX sequence out of AE. (Dpx's allow me to re-render specific parts of the piece without having to re-render all of it if something went wrong)

I want to put that back into Prores 4:4:4 but because Im on pc's I have very few options. Cinemartin doesnt cut it, it's giving too many problems to render Dpx sequences, specially adding the audio.

So I'm trying to find a way to get a 4:4:4 final output from my DPX sequence. The only workaround I found is (and I don't know if im totally messing up everything doing this) .. rendering it in "avi uncompressed" then import to cinemartin and then transcode to prores4:4:4 for archive or whatever.

Now: This Avi uncompressed format is everywhere from Vegas to premiere ae etc, what is it exacly? is it any better than prores444? Some people told me it has been "discontinued" or "just dont use that shit" type of things...

Is it a 4:4:4 format? Am I mixing different concepts here? Anybody using that?

Sure, filesize are enourmous, but im on working on 2 rigs, one for transcoding with 6tb space and another one for editing (a gaming laptop) with a 512gb ssd on it, both plugged to each other with a 1gbps lan. So... I can actually handle those filesizes.

To my eye, results look good, the final result is that it actually breaks down less when performing online that if I would just edit over the original h264.mov from the gh3

Any insights? Anybody can explain me in detail what is that uncompressed avi about?

Edit: So no, I'm not so sure that is better to transcode... just ran a test:

Took 1 50p50mbpsIPB clip from the GH3 Transcode to Prores444 and Avi uncompressed apply same codec destruction pack of effects check

I noted one thing: Artifacts would pop out like crazy when doing the same on a darker scene, although on that one of the test where there is a nice dynamic range... I actually had some trouble making the artifacts pop out properly.