Description
City Theatrical Donut
City Theatrical Donuts are used in the color frame slot of an ellipsoidal reflector spotlight to sharpen gobo projections.
Similar to the way the human eye sharpens focus when it squints, a donut reduces the aperture and sharpens the output of the fixture.
There is some reduction in brightness to achieve this increase in sharpness but this is often a tradeoff that designers are willing to make
2250 Donuts Specs Med
| Product Name | A | B | C | Part Number |
| ColorSource Spot Jr. Donut | 5.45″ | 5.45″ | 1.97″ | 2618 |
| S4, SL, SH, PC* (3 3/16″ center hole) | 6 1/4” | 6 1/4” | 3 3/16” | 2250 |
| S4, SL, SH, PC* (2 1/2″ center hole) ** | 6 1/4” | 6 1/4” | 2 1/2″ | 2260 |
| 6” Ellipsoidal, S4 Zoom | 7 1/2” | 7 1/2” | 3” | 2200 |
| New! 7.5″ with 2.5″ Aperture | 7 1/2” | 7 1/2” | 2 1/2” | 2201 |
| New! 7.5″ with 3.5″ Aperture | 7 1/2” | 7 1/2” | 3 1/2” | 2202 |
| New! 10″ Donut | 10” | 10” | 4” | 2218 |
| S4 10°, SL 10° | 12” | 12” | 6” | 2252 |
| S4 5° | 14” | 14” | 7” | 2251 |
| SL 5° | 16” | 16” | 7” | 2258 |
| New! 17.5″ Donut | 17 1/2” | 17 1/2″ | 10” | 2259 |
| S4 Mini | 2.76″ | 2.76″ | 2.3″ | 2575 |
| 125mm | 125mm | 125mm | 81mm | 2208 |
| 185mm | 185mm | 185mm | 81mm | 2210 |
*Source Four, Strand SL, Shakespeare, Pacific (19-50°)
**Smaller aperture provides shaper image but less brightness.
Features:
- Used to help bring templates into perfect sharpness
- Durable black powdercoat finish
- Fabricated from light gauge steel
