Hi, I get very dark images while using the spectrometer, so it seems not functioning correctly.
I also upgraded DVD grating with the upgrade from Public Lab ($10) it made no difference.
I pointed the spectrometer to the CFL bulb, and this is how it looks:
https://spectralworkbench.org/spectrums/137157
Also, it pretty much same when I point it to the sky.
The slit is the default one, I also ordered a set of slits, but the 0.4mm seems to be the same as the one in use.
Any help is very welcome.
Hi! Sorry you're having trouble. My first thought is what direction are the grating lines going? They should be horizontal, or for the DVD, the edge of the disc should be at the top or bottom.
My second thought is maybe the grating is too far from the camera?
Also, is it possible you've not yet selected a good cross section? Try taking a picture through the webcam with a webcam app, or clicking the settings button while capturing?
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