Longpass Filters
| Part No. | Wavelength (CWL) | Blocking Range (nm) | Dimension |
| RET270lp | 285 | 250-300 | up to 25mm |
| ET425lp | 440 | 300-600 | up to 25mm |
| AT435lp | 450 | 400-600 | up to 25mm |
| AT450lp | 465 | 400-700 | up to 25mm |
| ET460lp | 475 | 400-550 | up to 25mm |
| AT465lp | 480 | 400-650 | up to 25mm |
| RET493lp | 505 | 450-600 | up to 25mm |
| ET510lp | 525 | 400-650 | up to 25mm |
| AT495lp | 510 | 400-700 | up to 25mm |
| ET500lp | 515 | 400-650 | up to 25mm |
| ET520LP | 535 | 450-650 | up to 25mm |
| AT515lp | 530 | 450-700 | up to 25mm |
| ET525lp | 540 | 450-700 | up to 25mm |
| RET537lp | 550 | 500-650 | up to 25mm |
| ET542lp | 555 | 450-700 | up to 25mm |
| ET570lp | 585 | 500-750 | up to 25mm |
| ET575lp | 590 | 500-750 | up to 25mm |
| AT575lp | 590 | 450-800 | up to 25mm |
| ET590lp | 605 | 500-750 | up to 25mm |
| AT600lp | 615 | 500-800 | up to 25mm |
| ET610lp | 625 | 550-750 | up to 25mm |
| AT610lp | 625 | 500-800 | up to 25mm |
| RET638lp | 650 | 600-800 | up to 25mm |
| ET655lp | 670 | 600-800 | up to 25mm |
| ET655lp-TRF | 670 | 600-800 | up to 25mm |
| ET665lp | 680 | 600-800 | up to 25mm |
| ET780lp | 780 | 650-900 | up to 25mm |
| RET792lp | 800 | 750-900 | up to 25mm |
| RET1072lp | 1080 | 1000-1200 | up to 25mm |