High Dynamic Range (HDR) still photography is usually achieved by taking two or more photographs of the same scene at different exposures to retain detail in the high, mid and low tones. Using two Canon 5D Mark II HD DSLR [of course, any other DSLRs could have been used], sovietmontage captured an over-exposed and under-exposed video recording of the same scene, then post-processed them into the following HDR Video:
HDR Video Demonstration Using Two Canon 5D mark II’s from Soviet Montage on Vimeo.
source engadget