Star Analyser 200 Grating

Was struggling to get clean spectra with my SCT, but the 200 lines/mm grating gave me a much longer dispersion at half the spacing. First test shot of Vega showed clear hydrogen lines right away. Exactly what I needed for serious spectroscopy work.

Finally got the spacing right with my setup — the 200 line grating gives a much cleaner spectrum at half the distance I was using before. The resolution on fainter stars is noticeably better, and it works perfectly with my existing camera gear.

Was struggling to get clean spectra with my 100 line grating, but switching to this SA-200 made the difference — the shorter spacing really sharpens the image on my DSLR sensor. The spectrum length is perfect now without needing extra barlow or spacers.