The following are the first series of spectra I took with my DIY USB Sprectroscope.
First here’s the lamp I’m using as a source of light for the spectrum:
Definetly not a “True Light” but not that bad 🙂 That has to be taken into account.
The peak you see at 825,0 nm is nothing less than the end of the image so not related to the spectrum. I have to find a way to avoid that 🙂
I have a few narrow band filters that I mostly use for my solar imaging. And they are perfect for testing the spectroscope.
Here’s the famous Baader Continuum:
And then a series of filter I bought from an eBay store (http://stores.ebay.com/BJOMEJAG-EBUYER-STORE) where you can find good filters at very good prices.
Here’s an H-Alpha filter:
And here’s a “CaK” filter:
I have two of those and the idea is to try to stack and tilt them to shrink the band.
Here’s a very nice green filter that I use for white light images:
And finally a 705nm filter that I use for white light as well. I love this filter as it gives very “stable” images:
I used RSpec to take all the pictures.