Well this revised version is certainly doing better than I thought it would, especially since its using a 4.7GB DVD piece as a diffraction grating :)
The Rspec capture program is invaluable, and I will be purchasing it before the trial date expires, I'm sold!
It has features that are easier and better thought out (not to mention a far better user manual,) than Spectragryph 1.2.7
Below is the raw data capture from Rspec:
![](https://cdn.hackaday.io/images/8596441514139843264.png)
This is the actual CFL spectral image from Rspec (cropped):
![](https://cdn.hackaday.io/images/1320671514139953290.png)
![](https://cdn.hackaday.io/images/1170361514140021677.png)
Above is the calibrated CFL spectrum ( 6500K/23W/120VAC) and below is the FWHM data:
![](https://cdn.hackaday.io/images/9546631514140081908.png)
Right now I have a resolution factor of 3.4nm, not too bad but I can get it down a lot more with some fine tuning, hopefully to at least 2nm, this is due in part to limitations of the ELP cmos camera and using a DVD piece as a diffraction grating, (ruled gratings have random imperfections within their spacings.)
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