With the Red One which Nikon ,Canon, or Sigma would you use shooting in 2K to resemble the zooming and lowlight capabilities of a Fujinon 20X with 2X teleconverter. I video allot of wildlife at distances of 200 to 300 yards and like to be able to zoom in on them and also be able to video a person sitting as close as 3 feet from me, I also do not want to use a lens support system, Need a true ENG pick up and go camera rig. Is there a SLR lens that can handle that distance shooting near and far?? What would be your favorite?? Just hate to spend another 20K on a HD Fujinon lens if I can get the same from a SLR lens. Thanks