Optical Spectrometer Aperture Slit 10um - Metal - Great for DIY & Much More

Optical Spectrometer Aperture Slit 5um - Metal - Great for DIY & Much More

Optical Spectrometer Aperture Slit 500um - Metal - Great for DIY & Much More

Spectrometer Aperture Slit 200um - Metal - With Ocean Optics Mount

Optical Spectrometer Aperture Hole 700um - Exit Slit - Great for DIY & More

Optical Spectrometer Aperture Hole 1250um - Exit Slit - Great for DIY & More

Ocean Optics Insight Spectrometer INTSMA-000 SMA905 - No Slit - Fiber controlled

Ocean Optics 25um Slit SMA-905 Connector for Spectrometer USB2000 USB4000 & MORE