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Home > Classifieds > Astromart Classifieds > Filters > Classified #173836

For Sale: Rainbow Optics Precision Diffraction Grating/Nebula Finder *SOLD*

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Rainbow Optics Blazed Diffraction Grating (the precision filter part of the Rainbow Optics Spectroscope). It screws onto an eyepiece (looks like a conventional threaded filter) and distinguishes small planetary nebulae from stars (eg a planetary nebula in a globular cluster). An upgrade kit from Rainbow Optics turns it into a spectroscope. This Diffraction Grating is in NEW condition.

$95 Shipped

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