This image comparison shows a view through a Hazard-Avoidance camera on NASA's Curiosity rover before and after the clear dust cover was removed. Both images were taken by a camera at the front of the rover. Mount Sharp, the mission's ultimate destination, looms ahead.
Mars Science Laboratory: NASA’s Curiosity Rover Caught in the Act Landing
This is one of the first images taken by NASA's Curiosity rover, which landed on Mars on the morning of Aug. 6, 2012. It was taken through a fisheye wide-angle lens on the left "eye" of a stereo pair of Hazard-Avoidance cameras on the left-rear side of the rover. The image is one-half of full resolution. The clear dust cover that protected the camera during landing has been sprung open.