Bear is derived from the Celtic word for "bear", "artos". In ancient Greece, archaic cult of Artemis in bear form survived into Classical times at Brauron, where young Athenian girls passed an initiation right as "arktai" "she bears". For Artemis and one of her nymphs as a she-bear, see the myth of Callisto. The constellations of Ursa Major and Ursa Minor, the great and little bears, are named for their supposed resemblance to bears, from the time of Ptolemy. The nearby star Arcturus means "guardian of the bear", as if it were watching the two constellations. Ursa Major has been associated
Blackmagic URSA camera onto the URSA. The Broadcast model uses an optimized sensor for broadcasting in Ultra HD, as well as a specialized B4 lens mount and a neutral-density filter wheel on the body. The Blackmagic URSA Mini is a variant of the URSA camera. The 4.6k variant was released on March 17, 2016. It has a smaller form factor and loses some functionality and features over the URSA, losing the secondary 5" touchscreen, global shutter on the 4.6k variant and other features. However, it does ship in 4K and 4.6K specifications, and ships in EF and PL mounts. The Blackmagic URSA