Lighting and Sound Final

Ellipsoidal Reflector Spotlight

What does ERS stand for?

Iris, Film Effects, Glass Gobos, etc

What are some examples of things we would put in the accessory slot of an ERS?

Swap the Barrel

How do you change the beam width of an ERS?

Use the focus knob (forward = wider, backwards = smaller)

How do you change the beam width of a Fresnel?

Swap the lamp for one with a different lens

How do you change the beam width on a PAR 64

Very Narrow Spot Clear Glass

What type of lens is this?

Narrow Spot Strippled Glass

What type of lens is this?

Medium Flood Fewer Facets

What type of lens is this?

Wide Flood Many Facets

What type of lens is this?

Adjustable barrel changing the beam edge to hard or soft focus, rotation knob that rotates the barrel and shutters, interchangeable barrels to change beam width, four shutters for shaping and narrowing, slot for metal gobos, further slot for additional accessories.

Name some of the UNIQUE characteristics of an ERS.

AC - Alternating Current

DC - Direct Current

What are the two basic kinds of electricity?

Alternating Current

With this current, the movement of the electric charge periodically changes direction.

Alternating Current

This type of power is usually used in things plugged into the wall.

Direct Current

With this current, the electric charge moves constantly in one direction.

Direct Current

This type of power is usually used in batteries.

Volts

Electromotive force or "pressure".

Amps

The amount of electron flow or the "current".

Watts

The amount of useable power.

Volts

Watts / Amps = ?

Amps

Watts / Volts = ?

Watts

Volts x Amps = ?

Hard Patch

Physically connecting the circuit to the dimmer - like on the spaghetti board.

Soft Patch

On the light board connecting the dimmer to the channel.

Powercon

What cord sends power to intelligent lighting fixtures?

DMX

What cable sends data to intelligent fixtures.

The Address

What do we tell intelligent fixtures to listen to?

Purpose

What tells us what area the light is pointing to on the light plot?

Helps us know what colors are pointing where and how we can use them together.

What is the point of an effects plot?

Groups List and Effects Plot

What pieces of paperwork can be useful to a lighting deisgner, specifically during cueing and tech?

512 Channels

How many channels are in one DMX universe?

1 through 512

What universes do we usually use for our regular dimmers?

513 through 1025

What universes do we usually use for our intelligent fixtures?

2

How many DMX channels do hazers need?

8

How many DMX channels do paint cans need?

18

How many DMX channels do studio spots need?

This is the "hot" wire, it carries the power.

What is the black wire called and what does it do?

This is the "ground" wire, it keeps the circuits safe and makes sure we don't die.

What is the green wire called and what does it do?

To make the connection to the circuit first.

Why is the ground wire longer than the others?

This is the "neutral" wire.

What is the white wire called?

Red, blue, and green.

What are the tree primary colors of light?

Magenta

What do red and blue light mix to make?

Cyan

What do blue and green light mix to make?

Yellow

What do green and red light mix to make?

Additive Color Mixing

What is it called when we are adding colors to make a new light color?

Subtractive Color Mixing

What is it called when we are taking away colors to make a new light color?

Complimentary Tints

What do we call primary and secondary light colors that "complement" eachother.

Magenta

What is the complimentary tint for green?

Cyan

What is the complimentary tint for Red?

Yellow

What is the complimentary tint for Blue?

Color Temperature

A measurement in degrees kelvin that indivates the hue of a specific type of light source.

The cooler the light looks

The higher the color temperature...

The warmer the light looks

The lower the color temperature...

Stanley Mccandless

Who is credited for creating face light?

Distribution, intensity, movement, and color.

What are the qualities of stage light.

Visibility, selective focus, modeling, and mood.

What are the functions of stage light?

Direction

What is the primary element used in modeling?

1/4" Tip Ring Sleeve - can send balanced mono or unbalanced stereo signal

What does 1/4" TRS stand for and what can it do?

1/4" Tip Sleeve - only carries unbalanced mono signal.

What does 1/4" TS stand for and what can it do?

Connects microhpnes to a console, and sometimes connects consoles to speakres.

What is an XLR cable used for?

Dynamic

What type of microphone is this?

Condensor

What type of microphone is this?

Ribbon

What type of microphone is this?

Condensor

What type of microphone needs phantom power?

48v

What else can you call phantom power?

Condesor

What type of microhpne can be miniaturized?

Face Mics

What are condensor mics most commonly used for?

Allows or restricts the amplitude.

What does the gain knob do?

Turn up or down different frequencies

What does the EQ do?

Source, pre amp, signal processor, amplifier, speaker.

What are the 5 parts of signal flow IN ORDER?

Audio Cue

What QLab cue allows you to play sound cues with control over levels, timing, directionality, and effects?

Fade Cue

What QLab cue allows you to make changes over time?

Group Cue

What QLab cue allows you to put cues into a "folder" for organization?