Black leader is black, opaque film, often specifially called black emulsion leader. It is what the negative cutter uses when preparing A&B rolls. It is very important that it be emulsion leader rather than plastic leader when used for A&B rolls, since plastic leader cannot be cement spliced. It also must be very opaque, not any black piece of film will do.thepolliofolioglossaryofcinematographyterms
Similar in concept to white balance, but referenced to black. This function is found on some professional video cameras and is used to eliminate color tints.
A comedy in which the humour is derived from subjects which are typically considered serious , or for which humour is usually considered as unsuitable. Common examples are death, war, suffering, and murder.On the web: A list of black comedies at the IMDb.
Intensity of black. Darkest (blackest) part of picture. No light is emitted. NTSC black is 7.5 IRE.
Darkest tone printer distinguishes, darkest area in image against which all others are adjusted.