HOME | FAQ | LINKS | GLOSSARY | PRODUCTS |RENTAL | EMPLOYMENT | FORMS | CONTACT US
 
 
   Lighting • Dimming • Curtains • LED • Rigging • Make-Up • Special Effects • Scenic Materials
 
 

Contact Us

(312) 332-5611

(800) 621-2181

Quick Service Store 1319 W Grand Ave. Chciago, IL 60642

Office & Warehouse 3418 N Knox Ave. Chicago, IL 60641

Online Store store.grandstage.com

 
   
   
   
   
   
     
   
     
   
     
   
     
   
 
  If you know what you are looking for please select from the following options. If you are unsure of your application or need a little more information please check out our section on choosing the right light.
 
 
Lighting Fixtures    
     
Theatrical Fixtures
Automated Fixtures
Outdoor Lighthing
DJ Lighting
Architecture Fixtures
Film & Studio Fixtures
Follow Spots
LED Fixtures
     
Accessories and Parts
   
     
Accessories & Parts
Lamps & Sockets

Tapes
Gobos

Color Media
 
 
 
  Choosing the right theatrical light
 
 

The first decision you will need to make is whether you are looking for focused lighting or wash lighting.  Most shows will incorporate a mixture of the two.  

Focused lighting produces a hard edged beam which is more controllable.  Fixtures of this type frequently have shutters which allow for creating edges to the pool of light.  They commonly take gobos and other projection accessories.  The most common types of focused fixture is the Leko (A brand name of Strand Lighting), SourceFour (A brand name of ETC) or Ellipsoidal Reflector Spotlight (ERS and also called Pofile).  These fixtures come in a variety of focal lengths depending on the size of the stage and the distance the lights are from the target.  Follow Spots are also chosen because of their intenisty, beam angle, and estimated throw distance.   Please see our Quick Estimate table for choosing which size ERS you require. Both ERS fixtures and follow spots are available for purchase or rent at any of our three locations. 

Wash lighting is a little bit more broad in scope either refering to a wall wash or area wash.  Area wash fixtures are used to illuminate with a soft edge to the beam.  Common wash units are Fresnels and Par Cans.  Fresnels use a stepped lens and by sliding the lamp housing back and forth in the fixture, the beam is adjusted from spot to flood.  Par Cans, the workhorse of the Rock and Roll world, are reminiscent of the old "lights in a tin can."  The size and shape of the beam is a factor of which lamp you chose to install.  The newer generation of pars, such as the Altman StarPar, use the same lamp as many common ERS lights and have interchangeable lens sets to achieve the versatility of the traditional Par Can.  External barn doors can be added to shape the beams of the Fresnel and Par Can.

Wall Wash fixtures produce an even field of light over a flat plane. Fixtures of this type include theatrical Cyc, Scoop and Borderlights.

Intelligent lighting adds another dimension to the mix with the ability to remotely control individual attributes of a fixture.  In some cases this is as simple as a spinning mars light but can be as complex as a fully digital moving head LCD projector.  Sound complicated? Well its not.  Give our sales staff a call with your particular needs and we can help get you going on the right path. Originally developed by Vari-Lite the moving light has become a staple of our industry showing up in schools, worship centers and all levels of performance spaces.

Effects lighting is used when you are looking for a light which produces a specific reaction from people such as a rotating Mars light, a flashing strobe light or blacklights.

 
 
 
 

Common Ellipsoidal & Profile Beam Sizes

Ellipsoidal and Profile fixtures are generally referred to by their beam diameter. This refers to the size of the light cone produced by these types of fixtures. When selecting which Ellipsoidal or Profile fixture is correct for your application you need to determine the distance the light is from the projection space and the size beam you require at that location. Below is a table showing typical lens options and

When calculating the beam diameter of a given fixture you multiply its MF X the throw distance. The MF for many common beam spreads and lens sets are listed below. Please note these are not precision measurements, only approximate measurements.

Example for a 5° fixture at a distance of 50' you would multiply 50 X .009 to find a beam diameter of 4.5'.

 
 
8" Lens
6" Lens

S4/SL

Shakespeare/ Pacific

MF #

Beam at 10'

Beam at 25'
Beam at 50'
Beam at 75'
Beam at 100'
0.09
4'-6"
6'-9"
9'-0"
8" X 14"
6" X 22"
10°
10°
0.17
8'-6"'
12'-9"
17'-0"
   
14°
0.23
   
11'-6"
17'-3""
 
8" X 8"
6" X 16"
19°
20°
0.32
3'-2"
8'-0"
16'-0"
24'-0"
6" X 12"
26°
30°
0.46
4'-8"
11'-6"
23'-0"
6" X 9"
36°
40°
0.64
6'-5"
16'-0"
4.5" X 6"
50°
50°
0.93
9'-4"
   
70°
 
1.43
14'-4"
       
90°
 
1.93
19'-4"

 

 
Copyright © 2007-2015 Grand Stage Company. All rights reserved