Product Description
Overview
The ETF-DT is a donut accessory for S4 / SL / Shakespeare / Pacific/SPX, made to give lighting crews a specific front-end accessory matched to the fixture rather than a rough substitute. It supports beam control, image projection, glare reduction, or lamp service depending on the host fixture, keeping the accessory choice tied to the optical path and the way the fixture is actually used.
Why It Matters
This is the general-purpose donut in the family, useful when a designer wants cleaner pattern projection across several common ellipsoidal platforms. It is the small accessory that makes gobo work look more intentional from the house.
Key Features
- Flat ring aperture reduces lens flare and unwanted scatter around projected patterns.
- Matt black finish keeps reflections low at the fixture face.
- Host-specific compatibility helps the donut sit correctly in the accessory path.
- Useful for sharpening gobos, logos, and pattern projection compared with an unaccessorised fixture.
Host Fixture
Designed for S4 / SL / Shakespeare / Pacific/SPX. Lens flare / pattern sharpening
Applications
A practical accessory for theatre, broadcast, studio, rental-house, education, worship, and venue lighting systems where fixture-specific parts need to fit correctly and survive repeated handling.
Compatibility
Designed for S4 / SL / Shakespeare / Pacific/SPX; match host fixture model and accessory slot before use, especially when matching older fixtures or mixed-brand inventories.
Frequently Asked Questions
Is this the same thing as a top hat?
No. A top hat is a cylindrical snoot for glare control, while a donut is a flat aperture used mainly to sharpen pattern projection.
Will it make every gobo perfectly sharp?
It helps reduce scatter and flare, but final sharpness still depends on the lens tube, focus, gobo quality, and throw distance.
Can I use it on a different fixture?
Use it only where the host compatibility matches, because the aperture and accessory fit are fixture-specific.