NASA Lunar Orbiter Project. Mission 1, August 1966 . Lunar surface. Craters. Period silver print . Image: 24 x 19.5 cm Sheet: 25.5 x 20.5 cm The Lunar Orbiter mission shooting system combined two lenses. One of them provided a first medium resolution image that allowed the second to center another shot, this time in high resolution. The images obtained, thin strips, were then assembled to produce a large, high quality proof.