Optical Filters for Astronomy Applications
| Part No. | Bandwidth (FWHM) | Blocking Range (nm) | Dimension |
| 27001 | H-alpha 3nm Bandpass | 400-800 | up to 25mm |
| 27002 | H-alpha 5nm Bandpass | 400-800 | up to 25mm |
| 27003 | H-alpha 8nm Bandpass | 400-800 | up to 25mm |
| 27004 | H-beta 3nm Bandpass | 400-800 | up to 25mm |
| 27005 | H-beta 5nm Bandpass | 400-800 | up to 25mm |
| 27009 | SII 3nm Bandpass | 400-800 | up to 25mm |
| 27010 | SII 5nm Bandpass | 400-800 | up to 25mm |
| 27011 | SII 8nm Bandpass | 400-800 | up to 25mm |
| 27006 | OIII 3nm Bandpass | 400-800 | up to 25mm |
| 27007 | OIII 5nm Bandpass | 400-800 | up to 25mm |
| 27008 | OIII 8nm Bandpass | 400-800 | up to 25mm |
| 27040 | Luminance filter | 300-800 | up to 25mm |
| 27041 | Red filter | 300-800 | up to 25mm |
| 27042 | Green filter | 300-800 | up to 25mm |
| 27043 | Blue filter | 300-800 | up to 25mm |
| 27012 | Methane absorption band filter | 800-1000 | up to 25mm |
| 27030 | LoGlow Light Pollution | 350-750 | up to 25mm |
| 27044 | Clear Filter | 300-1200 | up to 25mm |
| 27050 | UV photometric filter | 300-1250 | up to 25mm |
| 27051 | Green (Visible) photometric filter | 300-1250 | up to 25mm |
| 27052 | Blue photometric filter | 300-1250 | up to 25mm |
| 27053 | Red photometric filter | 300-1250 | up to 25mm |
| 27054 | NIR photometric filter | 300-1250 | up to 25mm |