APOLLO 11 CAMERAS
For camera buffs, you might want to know that the still cameras used on the historic Apollo 11 mission were 3 modified Hasselblad 500ELs.
Two of the 500ELs were identical to the ones carried on the Apollo-8, 9 and 10. Each had its own Zeiss Planar f-2.8/80 mm lens. A Zeiss Sonnar f-5.6/250 mm telephoto lens was also carried. One of the conventional 500ELs, along with the telephoto lens and two extra magazines, was in the Apollo-11 Command Module throughout the flight. The other conventional 500EL, and two extra magazines as well, were placed in the lunar module. Also in the lunar module - and making its first journey in space - was a Hasselblad 500EL Data Camera, which was the one to be used on the moon's surface.
You'll notice that on the lunar surface images there are a series of crosses ("+") permanently marked on the images. These images were made with the Data Camera.
The Data Camera was an especially outfitted Hasselblad 500EL that was fitted with a Reseau plate. The Reseau plate was made of glass and fitted to the back of the camera body, extremely close to the film plane. The plate was engraved with a number of crosses to form a grid. The intersections were 10 mm apart and accurately calibrated to a tolerance of 0.002 mm. Except for the larger central cross, each of the four arms on a cross was 1 mm long and 0.02 mm wide. The crosses are recorded on every exposed frame and provided a means of determining angular distances between objects in the field-of-view.
The film used on Apollo-11 was the same type carried on the other flights - a Kodak special thin-based and thin emulsion double-perforated 70 mm film - which permitted 160 pictures using color film, or 200 images on black/white film.
Color film was used primarily on images taken outside of the Lunar Module while on the surface. Black and white images were taken inside the Lunar Module, images taken through the window of the Lunar Module.