Color Analysis

There is a spectrum analyzer in the ColourPicker Tab of the Eos Family.  I know it doesn't help with Conventional units . . . .

Andrew

Thanks Andrew. The ColourPicker is excellent for fixtures we've loaded but I was really looking for something like one of those audio analyzers that are 'two a penny". But if I can't find something maybe I could base my presentation on the ColourPicker. 

The transmission charts for gels are the next best thing to a spectrum analyser. They won't be 100% accurate as your lamp types and age will be different.

The Eos color tool blew me away when I first saw it because a bit of color geek. Nothing else like it around.

Look for DIY spectrometer

Wow! This turned up the "Theremino" DIY spectrometer. Fantastic device for any one really wanting to get "into" light. Thanks.

store.publiclab.org/.../spectrometry

If you happen to have a mac then you can do something quick and simple using the camera and the Digital colour meter built in app.

Normally you use that app for reading the RGB values of the screen when you want to match a colour when designing something.

But if you fire up any app that display what the camera is seeing eg facetime and then move the colour meter over it you will see the RGB values from the image.

Wondering if such an app was available on my Android tablet. But thanks for the heads up. What I'm really trying to do is see if a RGBWA LED's 'White' is really a pan spectrum white or just the RG&B diodes in unison.

You’ll never be able to tell without some really expensive equipment (or a prism and a dark room) as the detectors in cameras are just RGB sensors anyway so anything showing the spectrum is just extrapolating it from those values.

Now that makes sense, the 3 RGB (only) sensors explains why my thinking was distorted. In the Path Lab we used a lot of colour reactions to determine the concentration of various substrates. But we did use (very expensive) spectrophotometers and less expensive colorimeters. Appreciate the input.