|NASA Photo ID||ISS040-E-80797|
|Time taken||08:10:54 GMT|
|Nikon D3S Electronic Still Camera|
|4256E: 4256 x 2832 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 12.87 million, Nikon FX format|
Image Caption: ISS040-E-080797 (25 July 2014) --- From an altitude of 225 nautical miles, one of the Expedition 40 crew members aboard the International Space Station was looking almost straight down when he photographed this picture of Lake Chad, which is spread over parts of four African nations -- Chad, Niger, Cameroon and Nigeria. A 50mm focal length was used to capture the image.