LED Diffusion "Shoot-out"

TupeloTechie · Jul 29, 2017

In a couple of weeks I'll be performing a diffusion "shoot-out" of sorts with a couple of D40 Lustr+ units, my goal is to document through photos and video the effects of a wide range of diffusion materials we use for LED sources.

As I would like to make this documentation public, I'm looking to the masses for everyone's favorite solution in the hopes of finding some extra materials to test!

I currently have the following materials in mind:

-Full range of ETC diffusers for D40.
-Elation LSF range.
-ADJ DF-64.
-Wax Paper.
-Parchment Paper.
-Dollar Tree Cutting Mats?!
-Selection of traditional Rosco/Lee Diffusion.
(Looking for suggestions for most popular numbers!)

I'm also open to any ideas for the actual "shoot-out." My current plans are to create a grid of lines on the wall to better show the effects of each material, I'll also be using a LUX meter to get a general idea of light loss. If time allows I would like to get some sort of 3D object in the lights' path to see how each materiel deals with multiple color shadows, but I'm not sure how important that is anymore with the majority of new led sources being homogenized.

bdkdesigns · Jul 30, 2017

TupeloTechie said:
In a couple of weeks I'll be performing a diffusion "shoot-out" of sorts with a couple of D40 Lustr+ units, my goal is to document through photos and video the effects of a wide range of diffusion materials we use for LED sources.

As I would like to make this documentation public, I'm looking to the masses for everyone's favorite solution in the hopes of finding some extra materials to test!

I currently have the following materials in mind:

-Full range of ETC diffusers for D40.
-Elation LSF range.
-ADJ DF-64.
-Wax Paper.
-Parchment Paper.
-Dollar Tree Cutting Mats?!
-Selection of traditional Rosco/Lee Diffusion.
(Looking for suggestions for most popular numbers!)

I'm also open to any ideas for the actual "shoot-out." My current plans are to create a grid of lines on the wall to better show the effects of each material, I'll also be using a LUX meter to get a general idea of light loss. If time allows I would like to get some sort of 3D object in the lights' path to see how each materiel deals with multiple color shadows, but I'm not sure how important that is anymore with the majority of new led sources being homogenized.

In a pinch, I've used S4 PAR lenses in the past. I've also used L220 with great results on ultra short throws. For instance I had to fill a somewhat large area with less than a foot throw distance for Floyd Collins. I tend to throw it in light boxes now to help diffuse the source.

RickR · Jul 30, 2017

You might want to find out how many of the plastic diffuser sheets are made by Luminit and if possible which exact product.http://www.luminitco.com/applications/lighting
That might simplify some of the task by eliminating duplicates.

DIYLED · Aug 1, 2017

I like your combination of professional and less-than-professional options. I've used those frosted dividers from office supply stores, not for stage illumination but direct viewing.

Edit: it would be interesting to see a "shoot out" of LED strips from various manufacturers. In my experience brightness, color quality, and longevity vary greatly.

jonliles · Aug 2, 2017

How about office florescent light diffusers?

Chris Pflieger · Aug 17, 2017

Any update on this?

LED Diffusion "Shoot-out"

TupeloTechie

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bdkdesigns

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RickR

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DIYLED

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jonliles

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Chris Pflieger

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