35mm is a standard film format, so named because of its 35-millimetre width. It is the largest-format film stock ever used for the recording of anything to do with Doctor Who. Because of its relatively high cost, it was infrequently used for principal recording, though it was sometimes used by BBC Enterprises for telerecording.
However, the BBC Wales team have occasionally used 35mm for certain scenes to which they wanted to apply traditional film effects. A good example is in the Tooth and Claw teaser sequence with the monks. There, 35mm was used when the monks were actually "flying" through the air. (DCOM: Tooth and Claw)
- ↑ Though most telerecordings were done in 16mm, five survive in 35mm: "The Waking Ally", The Wheel in Space episode 6, The Krotons episode 1, The Seeds of Death episode 5, and The Space Pirates episode 2.
- ↑ The Restoration Team's notes on the TVM
- ↑ Both of the 1960s Dalek films, Dr. Who and the Daleks and Daleks' Invasion Earth 2150 A.D., were also filmed in 35mm.