Thoughts on Nikolaj Pognerebko’s RAW Convertor (Revised!)

Not a few of us have dreamed of being able to work with native ProRes RAW files in DaVinci Resolve, but realistically, it appears as though that’s not on the horizon. We’d been transcoding to ProRes 4444 with variable success for a while when it was announced last year that a Czech filmmaker by the name of Nikolaj Pognerebko had created an app, available over at the Apple app store, that converts ProRes RAW to cDNG, enabling a true RAW workflow in Resolve. A couple of YouTubers and tech websites have called Nikolaj Pognerebko’s RAW Convertor a game changer, and the response in the filmmaking community has been nothing if not enthusiastic. Curious, we just had to purchase the app for ourselves and take it for a spin. On the plus side: it’s got an extremely simple user interface; the user is offered the choice between lossless cDNG as well as 3:1, 5:1 and 7:1 compressed files and while it doesn’t take advantage of the GPU in Resolve, the footage edits smoothly enough, though exports will take longer.

On the downside, the uncompressed cDNG files take up nearly as much space as ProRes 4444 XQ and the app took around five times longer to transcode an 8.84 GB ProRes RAW clip to cDNG than Apple Compressor required to transcode the same clip to ProRes 4444 XQ (35 sec. vs. 7 sec.) on our M1 Max MacBook Pro. It would be convenient if the developer added the ability to drag and drop ProRes RAW clips directly into the app.

If you’d like to play around with the cDNG files yourself, here you go. There are 24 clips. You might need to place them in a folder before dropping them in the media bin of DaVinci Resolve Studio. Below are the project settings for HDR10:

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