ESO 1.52m + B&C Grating Efficiency

This form helps you to find the grating with the highest efficiency in the requested dispersion range. You can either specify a wavelength range or the central wavelength you need. In this second case, the wavelength range will be chosen as the one of the grating with the lowest dispersion.

dispersion from		to		(available range is from 0.048 to 0.726 nm/pixel)
wavelength from		to		nm
or central wavelength		nm