It would really take Seestar to the next level, and which nobody else has done in the market, that if you can optionally provide a 50 lines/mm diffraction grating that fits on the objective (similar to the solar filter), that would really be useful for advanced users who can use Seestar for doing spectroscopy. This would change Seestar's capability to entirely new level. I am really happy to use Seestar.