- Joined
- Sep 12, 2007
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- 113
I just ordered this:
eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices
Perhaps it will work.
I bought one several years ago. It's nice for seeing the spread of the spectrum of a light source, but only has a resolution of ~10nm and the scale is horribly off. A bluray measures ~420nm, green measures ~560nm, and red measures ~700nm on the one I have. There's no way to "calibrate" them as it is all glued together.