The final video color has not been graded in any way, all the footage is straight off the camera. We decided to shoot to the ProRes codec, rather than RAW, once we saw the image the camera gave in the standard rec709 color space. The water based paint would also mix better – a latex paint would mix slower, but may have looked cool as colors intertwined more. For paint, we went with a water based children’s finger paint – in hopes that maybe we could salvage the speaker, and our clothing. If we had chosen a standard UHD 4K recording, we could have shot even faster. We decided that shooting the true 4K image would be best – 4096 x 2304 at 938fps. With our stage set, we then turned to camera settings. We hooked our speaker up to a receiver, and fed it various tones from an iPhone - apparently, yes, there is an app for this. To hold our subject, we set up a basic wooden platform, making sure to keep a wide enough base to catch any paint shrapnel. The mid-day sun was our best bet, so we set up outside. (It did.) First, we knew we needed light. Eventually, we had it all planned out – we were going to see if mixing some paint with a huge speaker would produce some cool results. With all that power under the hood, the question now becomes: What are we going to shoot?! It took us a while to come up with a subject that would do the camera justice. Shooting RAW or ProRes, the Flex4K can crank all the way up to 938fps at true 4K - and almost 2,000fps in HD. As with all of their products, Vision Research has created yet another high frame rate monster.