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Custom Glass Gobo - 2 Color


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Please read the following requirements for submitting a custom order:

  1. Artwork Requirements (minimum image resolution of 800 dpi - To achieve smooth color blends and fine details requires a very high resolution file)
  1. Gobo Size and/or Fixture Type
    Rosco can manufacture custom steel gobos to fit virtually any light fixture available. The fixture you use will determine the size of the gobo you need. If you know the gobo size (B-size, M-size, etc) your fixture requires, then that’s all we need. If you don’t know the actual gobo size, many times the fixture manufacturer will provide its gobo requirements, including the gobo’s outer diameter (O.D.) and image area (I.A.). To be sure you get a gobo that fits your fixture, it's always best to provide the make and model of the lighting instrument you are using when ordering.

  2. Need by date must be a minimum of 4 days after order date. Minimum need by date requires overnight shipping to be selected at checkout. 





3 Days

Gobo will be ready to ship within 3 working days ARCO.

* ARCO = After Receipt of Complete Order. Complete order means we have received (a) acceptable artwork, (b) job details including gobo size, quantity, image details, etc., Rosco cannot begin to work on a job until they have received all of this information.

Product Description

Whether you need B&W glass versions of your favorite Rosco steel designs or you need to project a color-matched logo for a corporate event, Rosco Custom Glass Gobos are the most effective way to provide superior projected imagery for the most demanding client or production manager. Choose Rosco to ensure perfect color and image design for your glass gobos. With facilities in both the US and Europe, Rosco is the largest manufacturer of gobos in the world.  Rosco's two art departments ensure nearly 24-hour coverage so that someone is almost always available to work on your gobo design.

Stochastic Screening:

Stochastic screening is a technique that uses a random dot pattern, which compared to conventional screening that uses a regular pattern of dots in straight rows, produces better image detail for gobos. Thanks to our stochastic screening process, Rosco Custom Glass Gobos do not produce moirés, rosettes or other ill effects found in other glass gobos.  While conventional screening can be an effective technique for other imagery, stochastic screening is a much better choice for gobos because it is able to provide finer detail and truer color on small images with fine, angular lines, smooth reflective surfaces and graduated tones.

Rosco Manufactures Its Own Dichroic Glass:

Dichroic glass is the basic building block for colored glass gobos, and we are the only gobo manufacturer that manufactures its own dichroic glass. This enables us to offer color consistency from gobo-to-gobo and from batch-to-batch, which means that the gobo we make today will match any replacement gobos we make in the future. We’re also able to manipulate the CMYK color-palette of the gobo, which allows us to provide unequaled color flexibility to satisfy the most particular requirements. We’re also capable of producing unique lighting effects such as metallic and pastel colors that other gobo manufacturers simply cannot match.

Ultra-Thin Layers:

Custom colored glass gobos are made by stacking layers of dichroic glass with custom, etched patterns on top of each other in order to subtractively mix the colors needed for the image. Because Rosco manufactures its own dichroic glass, we are capable of producing ultra-thin CMYK layers to assemble incredibly thin gobos. Rosco Custom Glass Gobos are as thin as 1.1 mm for B&W and one-color gobos, and 1.9mm for multi-color gobos. This is particularly important because our ultra-thin glass gobos offer a superior focal plane for excellent image projection using the optical capabilities of modern gobo projectors and moving lights.

Wet Etching for Clean Vertical Cuts:

Rosco's unique wet etching processes were created to perfectly complement the in-house dichroic glass capability, stochastic screening and specialized coatings developed by our in-house engineering and technical team. Our specialized etchant formula enhances our color-control of each CMY hue and optimizes gray scale gradients. This is important for exact matching of color artwork and gradient quality for creating extra-fine lines and details that other gobo companies can’t achieve.  The precise, vertical cut of the gobo produces a cleaner projection with less “feathering” of the image.

Product Specification

Custom Color Glass Gobos

Substrate: Borofloat Glass

Gobo Thickness: 1.1mm – 1.9mm (depending on type)              

Size Range: 10mm to 110mm (additional charges may apply for extra-large sizes)

Image Screen: Stochastic

Coating Information: Rosco-manufactured CMY dichroic glass

All dichroic layers are bezeled according to light-fixture specifications. Gobo-carrier charges may apply for fixtures that require specialized carriers.

Any Size, Any Fixture:

When you order a custom steel gobo, we recognize that your design and your situation are both completely unique; this includes the fixture you’re using to project it. Whether you need a tiny gobo for a moving light or an A-size gobo for the latest LED gobo projector, we can make your gobo in any size you need to fit into any fixture, many times at no extra expense to you.

Standard Gobo Sizes
Letter Size OD IA Comments
A 100mm 75mm Fits most conventional ellipsoidals
B 86mm 64.5mm Industry standard size for ellipsoidals
M 66mm 48mm For Jr. Ellipsoidals
E 37.5mm 28mm Mini ellipsoidals. Specify make and model.
Moving Light sizes rotating, static, effects wheels Varies Varies Moving Light sizes can vary depending on static wheel, rotating or effects wheel. Specify make & model and the wheel used.
Architectural Projectors Varies Varies Any architectural unit that utilizes gobos. Specify make & model.


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