(meteorobs) Thorlabs transmission Gratings.

[Ed Majden]

    Has anyone used Thorlabs transmission gratings for meteor spectroscopy?  If so, how do they compare with a Richardson Grating Lab precision blazed replica transmission grating?
This is the one we are looking at.

GT50-06V - Vis Trans Grating, 600 Grooves/mm, 28.7° Blaze Angle, 50 mm x 50 mm

Thank you:
Ed Majden
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