Adam Magyar is a conceptual photographer who is best known for his breathtaking series Urban Flow. In his newest project, Stainless, Adam has stitched together multiple high speed photographs of passing subway trains capturing awesome detail of urban commuters. The above video is a brilliant and clever marketing piece for the Stainless series (which can be seen here). I'm not sure what camera he used to turn 12 seconds into 8 minutes of HD footage but the results are memorizing.
Here are a few excerpt images from Adam's website. Be sure to check out the full composite images where you can zoom in and see all the detail. It's pretty amazing the quality he has been able to capture with such a low lit subject that is moving incredibly fast.