The eShel spectrograph has been designed for observatories. Professional research, such as the hunt for exoplanets, is possible with this system.
Shelyak
Spectroscope eShel complete system
$ 22,476.61
ready for shipping in 1-2
weeks
Shelyak
Spectroscope eShel lense version
$ 11,338.65
ready for shipping in 1-2
weeks