LIGHTING

this diagram was from the website :http://www.hsc.csu.edu.au/entertain/industry/core/lighting/3220/information.htm#light_mixing

COLOUR MIXING:

colour mixing is combining the effects of two or more lighting gels and can be either subtractive (which is putting two lighting gels onto the same beam, so putting 2 gel lanterns to make one colour) or additive ( focousing two different coloured gel lanterns on the same spot to create a mixed colour) 

How coloured light effects coloured pigments

How coloured light effects coloured pigments
	Red pigment	Orange Pigment	Yellow pigment	Green pigment	Blue pigment	Violet pigment
Red Light	Fades and disappears	Becomes lighter	Becomes white	Becomes much darker	Becomes dark grey	Becomes black
Yellow Light	Remains red	Fades slightly	Fades and disappears	Becomes dark grey	Becomes dark grey	Becomes nearly black
Green Light	Becomes much darker	Darkens	Darkens	Becomes pale green	Becomes dark green	Becomes nearly black
Blue Light	Darkens	Becomes much darker	Becomes light mauve	Lightens	Becomes pale blue	Becomes light mauve
Violet Light	Becomes pale red	Lightens	Becomes pink	Becomes pale blue	Darkens	Becomes very pale
Neutral colours (black, brown and greys) remain almost the same under all lights, apart from a slight change in depth of tone or shade.

      Lighting Personnel

Lighting Designer

Lighting designers design and plan lighting effects for theatre, dance, opera productions and live events. They should know how to make the best use of the powerful light as they create effects that can be changed depending on the mood of the action of the performance. They usually consult with directors to discuss the best approach for each production. They also create light plots and sequence lighting cues which take into consideration the size, shape and capabilities of the performing atmosphere, visibility of those performing as well as the mood of each specific scene.

Duties and responsibilities can vary from time to time but generally they are required to attend rehearsals to see how the performing space will be used in the production, supervise the lighting instruments, and attend dress rehearsals to supervise lighting and apply changes if needed.

Lighting Technician

Lighting Technicians set up, maintain and operate light fixtures, control devices and other electrical and rigging equipment used for theatre and stage productions and events.

They generally work with a head electrician, a lighting designer or director, director of photography or master electrician to create lighting designs. They read and interpret blueprints, perform simple wiring tasks, calculate maximum circuit loads, perform routine maintenance functions including replacing lamps and damages colour filters or patterns, and maintaining safe lighting equipment.

Lighting Operator

Lighting operators position, set up and operate lighting equipment to light sets of studios during performances, TV broadcasts or film productions. They are responsible for lighting interior and exterior scenes and must achieve the desired effects through the placement and colour of the lighting.

They also study scripts and discuss lighting effects with production staff, coordinate activities with electrical crew, select and position lighting equipment, arrange and connect cables, operate lights during filming or  broadcasting, maintain and repair lighting equipment and arrange for the transportation of equipment to the required locations.

Follow Spot Operator

The follow spot operator is known as a common first job in lighting. The follow spot is a light which is physically moved by the technician during the production, to follow a performer around the stage. They may also have mechanisms to change colour as well as an iris to change the size of the light beam. Basically, the follow spot operates and maintains the follow spot during live performances.