I had the opportunity to spend some time in Cincinnati over the weekend and spent part of that time playing with a new type of photography (new to me). HDR photography uses multiple photos set at various exposures (over/under the correct exposure). Once combined the images reveal a lot more detail than the properly exposed image.
The term Backplate is used more often in association with CGI and 3D. Backplates are 2D background images of landscapes.
HDR dome