Trojan Badger

This is incredible.

Video Demonstration Using Two Canon 5D mark II's from Soviet Montage on Vimeo.

Normally, HDR images require taking successive shots at different exposures. You over and under expose an image, and combine the results into a single image via a fuse and tone-map process. Obviously, this is impossible to do with video, given that the two cameras would be recording from slightly differing perspectives, even if they were sitting side-by-side. You would end-up with massive ghosting after trying to combine them.

Instead these guys used a beam splitter. A single lens captures the image, splits it in two, and sends an identical image, simultaneously, to two separate cameras. Even at that, it's amazing they pull this off. The technical challenges are daunting: matching up the two videos frame-by-frame, aligning cameras exactly, adjusting focus separately, etc.

I look forward to seeing more.