Later approaches to fulldome utilized monochromatic vector graphics systems projected through a fisheye lens. A few panels imitate the style of a fisheye lens. These models are used with a fisheye lens. Often the videos are shot using a fisheye lens. This method requires the use of a "Fisheye lens" equipped digital SLR camera. Panoramas with fisheye distortion predate the fisheye lens. The Hill Sky Lens is now credited as the first fisheye lens. A backup camera typically sports a wide-angle or fisheye lens. An extreme version of this effect can be seen in the fisheye lens. This convex lens gives the name to the fisheye lens in photography. Century Optics designed the Mk1 fisheye lens just for the VX1000. The image is projected through a fisheye lens onto the dome of the planetarium. It featured a fisheye lens camera system that rotated levels with Sonic's movement. The first fisheye lens was the Beck Hill Sky (or Cloud; UK) lens of 1923.