From etymology online,
camera - 16c., Mod.L. camera obscura "dark chamber," from L. camera "vaulted room," from Gk. kamara "vaulted chamber," from I.E. base *kam- "to arch." Shortened to camera when modern photography began, 1840. Contrasted with camera lucida (L., "light chamber"), which uses prisms to produce an image on paper beneath the instrument, which can be traced. Camcorder is from 1982.