by courtesy of Bob Tull
Tables listing: order, blaze wavelength, n, dispersion, free spectral range, and physical dimensions in the focal plane:
1. F1+E2
2. F1+E1
3. F3+E1
4. F3+E2
Tables listing: order, blaze wavelength, wavelengths with half the
light at the blaze wavelength, dispersion at blaze and at the
wavelengths with haft the light at the blaze, and angular separation
between orders:
1. F1+E2 2. F1+E1 3. F3+E1 4. F3+E2
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