Theatrical

Sales

Some Helpful Tips & Information for you:

The STL 66 lbs. Boom Base
Gobo Patterns
Photometric Information
"Disappearing Effect"
Intelligent Controllers
Gobo Effects
Safety Cables
Selecting the right gel
Diffusion & Color Correction
The STL 66 lb. Boom Base: Custom-designed by our Special Projects Department, there’s nothing else like it on the market today, and this heavy boom base has just about every feature you’ve ever wished for. It’s got built-in carrying handles, and is stackable. The upright attachment bushing accepts up to a 1-1/2” steel pipe, using a pair of set bolts to secure it, so smaller diameter pipe can also be safely used if desired. The 4 mounting holes, one at each corner, allow the base to be securely attached to the stage floor or surface, increasing stability and safety. Shims at each corner keep the base just off of the floor, for ease of grabbing when moving or lifting the base. The corner holes can also be used to attach casters, for a handy “TAS” rolling base assembly. The STL base is epoxy-coated in semi-gloss black paint. Weighing in at a hefty 66 lbs. it’s a real workhorse, and the only boom base you’ll ever need!
At STL, we can provide gobo patterns from your custom artwork, whether it’s a company logo, special theme, or advertising slogan. Gobos are available in standard brass or stainless steel (ideal for simple line art and black/white images) or full-color glass lithography (reproduces any image, just like a slide projector). Custom gobos can be valuable and exciting marketing tools.

Tips on photometric information: When unfamiliar with the performance of a particular fixture, it helps to compare the photometric data with that of a familiar instrument, helping you make an educated evaluation. Keep in mind that several variables affect fixture light output characteristics at any given distance from the lighted area or object. Lamp wattage, beam angle, distance from illuminated target, reflector and optical efficiency all affect the overall light output of a given fixture. STL maintains an extensive library of fixture manufacturer’s photometric data for your reference. We’re here to help if you need assistance!


How can I do that magical “disappearing effect”, where scenes are both hidden and revealed in front of and behind a scrim? It’s quite simple, really. First, you’ll need a scrim made using a loosely-woven scenic material. Sharkstooth scrim works best, white or black depending upon your specific scenic requirements. The scrim is used to separate two acting areas, one in front and one behind. Next, when lighting the front acting area, light the scrim (also from the front) at a very steep angle, with no lighting levels on the area behind. The reflection of the scrim lighting on the front surface will be sufficient to make the scrim appear opaque, providing a backdrop for the front acting area while effectively hiding the area behind. Finally, lower all lighting levels in front, raising the lighting levels on the area behind, and - voila’! - instant lighting magic, the scene behind the scrim appears. STL also provides theatrical fabrics and custom-made theatrical drapes. Call for a free estimate on the softgoods that fit your needs.
The various controllable features of intelligent fixtures, called “attributes”, are usually controlled using the standard DMX protocol found in most control consoles. These attributes, such as pan, tilt, color, gobo, speed, iris, and intensity are assigned a corresponding DMX channel during the fixture and system setup process. The fixture’s DMX start address is assigned to the first in the set of attributes for that fixture. All subsequent sequential DMX channels are then assigned to that fixture for the rest of the attributes to be controlled. For instance, if a fixture requires 16 DMX channels to control all of its attributes, and its start address is #1, then all DMX channels from 1-16 will be assigned to that fixture. Some control consoles, while efficient for a theatre dimming application, can be quite cumbersome to program for moving lights. There are quite a few little tips and secrets to using a moving light console to its fullest extent. STL offers many different types of control consoles specifically designed for moving light applications. Come talk to us about your needs, and we’ll be glad to find the console that’s right for you!
Gobo Effects: Try using two different gobo patterns in a Twin Spin or Double Gobo Rotator device.  By rotating each at different speeds, or in opposing directions, you can create endless dynamic pattern and texturing effects. Try experimenting with focus, adding a static gobo and color for even more possibilities.
Safety Cables: We recommend using safety cables as an effective redundant safety backup for all of your lighting fixture attachments. In real life, human error can lead to loose attachments, and clamps could also fail. Without a safety cable, you have no backup to keep the fixture or attachment from falling. STL has them available in stock, in both galvanized and matte black finish. Safety is no accident. Be safe and use a safety cable!
Selecting the right gel for your application is subjective, and can be very difficult for the novice designer. At STL we have a number of very experienced and competent designers on-staff to help explain to you the many nuances of color gel selection. We can help you learn more about how color can impact scenic elements and costume designs, and how it can affect the mood of a scene.
Diffusion material and color correction media is widely used in the Film and Video industry for controlling or softening the otherwise harsh beam of light from an uncovered fixture lens. Diffusion material is available in a wide range of styles to perform many different beam-controlling functions, all basically intended to reduce intensity, control shadows, and soften beam edges in a predictable manner. The softer the beam of light, the less pronounced the shadows produced by the light. Color correction media helps to correct the spectral output of a lamp source, or to match the output of several sources having different spectral characteristics. Video and film cameras are highly sensitive to the color temperature and spectral output of a lamp source, and without color correction media, the final product may contain undesirable light and color characteristics. Remember that the camera is much less forgiving than your eye - just call STL and our knowledgeable staff will be glad to help you understand why correctly balanced lighting sources are critical to well-produced film and video.

Sales || Rental || Special Projects || Productions || Tech Services
Conventions & Expositions || Grandstands || Photo Gallery
Home || Request Information || Location || Contact STL

 

©2008, Sacramento Theatrical Lighting, Ltd. All Rights Reserved
If you have any questions or comments about the STL, Ltd. website
please contact the Webmaster