Normally in stock, more are on the way and should arrive within 1 - 3 weeks.
Eligible for FREE Shipping when purchased as an accessory! What's this?
When purchased with an item offering free shipping, we'll extend the free ground shipping to this product as well.
No code required, look for and select the Musson Super Saver Shipping option.
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.