The Command to Record Visually
“Roll Camera!” is the on-set command that cues the camera department to begin recording the image. This instruction is a crucial step in the pre-take “lockup” sequence, a standardized protocol designed to ensure that both sound and picture are properly recording and synchronized before the director calls “Action!”
The command is given by the First Assistant Director (1st AD), who is responsible for the efficient and safe running of the set. The 1st AD gives this command immediately after receiving confirmation from the sound department that they are recording successfully (the call “Sound Speed!”).
Technical and Practical Meaning
Historically, in the era of celluloid, this command instructed the camera operator to start the motor that would physically roll the film stock through the camera’s gate. The camera required a few seconds to reach its stable operating speed (typically 24 frames per second). Once this stable speed was achieved, the camera operator or 1st AC would confirm by calling out “Speed!”
In the modern digital era, the command instructs the camera operator or Digital Imaging Technician (DIT) to press the record button on the digital cinema camera. While digital cameras record instantly, the brief pause before the “Speed!” confirmation is still observed. This tradition ensures there is a clean “head” to the clip and allows time for the camera’s timecode to lock with the separate audio recorder, which is essential for synchronization in post-production.
The Call-and-Response Protocol
The sequence is a precise call-and-response:
- 1st AD: “Roll Camera!”
- (The Camera Operator starts recording)
- (After a brief moment) Camera Operator or 1st AC: “Speed!”
Only after hearing the “Speed!” confirmation does the 1st AD proceed to the next step, which is typically calling for the slate or “marker.”