Spectroscope gratings/ prisms

[Merlin66]

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!!

[cristian abarca]

Hi Ken I might be interested what's below cost?

regards cristian

[Merlin66]

These items have now been sold.