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Spectroscope gratings/ prisms
Now that I've "finished" the MkII spectroscope, I've got some nice prisms ( set of three) and a couple of transmission gratings ( 1200 l/mm) left over, which could be used to make a couple of very simple spectroscopes. The grating can be used with an eyepiece/ camera to give stellar spectra.
Any interest? Will sell at below cost!!
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