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EDLT Enhanced Definition Lens Tube

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19º, 26º, 36º and 50º field angles.
Heightened sharpness and contrast. Increased output.
Advanced, dual atmospheric lenses with anti-reflective coatings.
Fits all new and existing Source Four fixture bodies.

When your lighting situation requires even more precise optics for projecting images, gobos, and logos, the Source Four® EDLT (Enhanced Definition Lens Tube) option is an invaluable addition to your Source Four inventory. The EDLT attaches easily to any new or existing fixed-focus Source Four ellipsoidal spotlight. While increasing light output up to 10%, EDLT also provides heightened sharpness and stunning contrast to images when the Source Four is used as a pattern projector. With the innovative EDLT option on your Source Four, the best spotlight available gets even better.

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ETC Electronic Theater Controls

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What is Source Four EDLT?

EDLT stands for “Enhanced Definition Lens Tube”. The EDLT offers heightened contrast and edge crispness to projected
images, specifically when the Source Four is used as a gobo projector. This is an optional lens tube for the Source Four, it
is not the entire fixture.
What’s so innovative about the EDLT?
The EDLT’s new dual a-spheric lenses utilize the most advanced manufacturing techniques and anti-reflective coatings.
The system is optimized for sharp focus of intricate gobos with maximum lumen output.
Why is the EDLT an option rather than standard on all Source Fours?
EDLT’s advanced optical system costs more to produce and is not required for most lighting applications. But when the
lighting situation calls for even more precise projection optics, EDLT is available! Remember, millions of Source Four
products are in the field and remain the benchmark for luminaires, still setting the standard for performance and price.
Is there any loss of light output associated with the EDLT?
No, in fact, preliminary photometric tests show that the EDLT produces a gain in field lumens, along with improvements to
contrast and acuity.





Additional Info

Additional Info

Name EDLT Enhanced Definition Lens Tube
Manufacturer ETC Electronic Theater Controls
MSDS/Tech Data No


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