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A comment on Inexpensive chip-based device may transform spectrometry.

Re:Inexpensive chip-based device may transform spectrometry by softgrow on Thursday October 25, 2018 @08:21PM (#18305799)
If you are wanting an inexpensive spectrometer, then Public Labs has instructions on how to build one using an old DVD as a diffraction grating https://publiclab.org/wiki/spectrometry

I got a kit as a present and really enjoyed it.

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Re:Inexpensive chip-based device may transform spectrometry by dejv on Friday October 26, 2018 @05:15AM (#18307780)
It depends on what you want this spectrometer to do. Public Lab spectrometer is interesting and cheap, but the performance is very very limited.

If you need something better you can search eBay for used (scanning) monochromators. Next step is to check Ocean Optics or Hamamatsu catalogs: they have good line of products, but those are in 1000 USD+ range.

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