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FAQs Design / Build / Install Color Cross Reference Lamp to Fixture Reference

Lighting Accessories - Donuts

CTI 2250

City Theatrical 2250 Donut, 6-1/4", with 3-3/16" Opening

City Theatrical 2250 Donut, 6-1/4
Catalog # INAC-0161
Model #: CY2250

City Theatrical 2250 Donut, 6-1/4", with 3-3/16" Opening, for Source Four, Strand SL, Shakespeare & Selecon Pacific 19-50°

Donuts are used in the color frame slot of an ellipsoidal 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.

 

Availability:   
Available
$6.75
 

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City Theatrical 2250 Donut, 6-1/4", with 3-3/16" Opening