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Uploaded on November 17, 2016 15:09 UTC
Spectrometer v3.0 with camera from v2.0. Removed infrared filter. Focus 22cm.
The blue LED from the webcam was removed. It looks like the the broad "hump" in the 'blue' background level is not related to that (see comment https://publiclab.org/questions/pablo/11-14-2016/is-the-webcam-from-spectrometer-v2-0-suitable-for-the-upgrade-to-3-0#answer-113-comment-15839). @stoft suggests "suggests possible light leakage, optical path skew, or some distortion". I'll try to change the DVD and look for leakages.
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