Floodlight
Broad wash of light, soft edges
Parcon
Strong beam of light, hard edges. Used for dramatic affect
Fresnels
Soft edged, can control the scatter of light with barn doors
Birdie
Small focused beam, soft edges for shadowing
Profile
Narrow, very hard edges, good for isolating areas/charecors
What is a gobo?
Fitted on front of lanterns to make a pattern.
What do gels do?
Project different colours