A camera was a device for taking still photographs.
Jamie McCrimmon used a camera to take pictures of an army of humanoids on an Earth-like planet. (PROSE: Follow the Phantoms)
Isobel Watkins used a camera and infrared film to take pictures of the Cybermen in the London sewers. (TV: The Invasion)
Harrison Chase used a camera to photograph the Krynoid in the grounds of Chase Mansion. (TV: The Seeds of Doom)
The Fourth Doctor used a Polaroid camera to take a photograph of the soldier in Florence, 1505, and knocked him out while he was distracted by his photographic image. (TV: City of Death)
The Seventh Doctor used a camera to communicate with the Imperial Dalek Mothership, after first connecting it to the Dalek Transmat by fibre optic cable. (TV: Remembrance of the Daleks)
Mickey Smith used his camera phone to take a picture of a Slitheen whilst it was being electrocuted. (TV: World War Three)
Fairies could choose whether or not a camera could take their picture. (TV: Small Worlds)
Kazran Sardick kept a camera about him. He used it to take black and white pictures of his adventures with the Eleventh Doctor and Abigail Pettigrew. (TV: A Christmas Carol)
The Eleventh Doctor used a camera to take photographs of "the Witch of the Well" throughout the history of the site of Caliburn House, and to take pictures of himself. (TV: Hide)
Many cameras failed to work during what was later called Operation Mannequin, resulting in a smaller-than-expected amount of footage being captured of the attack. (PROSE: Operation Mannequin) The new webmaster of Who is Doctor Who? noted the lack of CCTV footage of the Ninth Doctor being captured, but he suspected the Doctor of removing this evidence. (PROSE: The Doctor Was Involved in the Dummy Massacre)
A saying amongst humans was that cameras never lied. Mark Seven disbelieved this though, telling Anya Kingdom that cameras were untrustworthy. (AUDIO: The Wrong Woman)