Rosco will manufacturer gobo patterns to any size specification needed for a particular luminarie. The sizes indicated in the following table are the most commonly used. However, we will manufacture for any size, any fixture, any wheel that accepts a gobo.
| Standard Gobo Sizes | |||
| Letter Size | OD | IA | Comments |
| A | 100mm | 75mm | Fits most conventional ellipsoidals |
| S | 92mm | 79mm | Fits ETC Source Four fixtures. Steel only. |
| 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. |
| Some standard metal designs may need slight modifications to fit sizes smaller than the M size. Please inquire with your dealer or call us at 866-228-2256 to confirm your moving light pattern choice. You can also email us at customgobo@rosco.com. Rosco glass standards can generally be made for any fixture without modifications. Some exceptions may need to be made for color glass under 23mm image area. | |||