| NDUV20B Dia. 25 mm Unmounted UVFS Reflective ND Filter; OD 2.0 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV40B Dia. 25 mm Unmounted UVFS Reflective ND Filter; OD 4.0 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV2R02B Dia. 50 mm Unmounted UVFS Reflective ND Filter; OD 0.2 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV2R04B Dia. 50 mm Unmounted UVFS Reflective ND Filter; OD 0.4 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV2R05B Dia. 50 mm Unmounted UVFS Reflective ND Filter; OD 0.5 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV2R06B Dia. 50 mm Unmounted UVFS Reflective ND Filter; OD 0.6 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV2R13B Dia. 50 mm Unmounted UVFS Reflective ND Filter; OD 1.3 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV201B 50 mm x 50 mm UVFS Reflective ND Filter; OD 0.1 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Rectangular | | |
| NDUV202B 50 mm x 50 mm UVFS Reflective ND Filter; OD 0.2 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Rectangular | | |
| NDUV204B 50 mm x 50 mm UVFS Reflective ND Filter; OD 0.4 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Rectangular | | |
| NDUV206B 50 mm x 50 mm UVFS Reflective ND Filter; OD 0.6 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Rectangular | | |
| NDUV213B 50 mm x 50 mm UVFS Reflective ND Filter; OD 1.3 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Rectangular | | |
| NDUV240B 50 mm x 50 mm UVFS Reflective ND Filter; OD 4.0 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Rectangular | | |
| NDUV504A Dia. 0.5 in SM05-Threaded Mount; UVFS Reflective ND Filter; OD 0.4 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV505A Dia. 0.5 in SM05-Threaded Mount; UVFS Reflective ND Filter; OD 0.5 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV510A Dia. 0.5 in SM05-Threaded Mount; UVFS Reflective ND Filter; OD 1.0 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV530A Dia. 0.5 in SM05-Threaded Mount; UVFS Reflective ND Filter; OD 3.0 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV540A Dia. 0.5 in SM05-Threaded Mount; UVFS Reflective ND Filter; OD 4.0 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV03A Dia. 25 mm SM1-Threaded Mount; UVFS Reflective ND Filter; OD 0.3 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV04A Dia. 25 mm SM1-Threaded Mount; UVFS Reflective ND Filter; OD 0.4 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV05A Dia. 25 mm SM1-Threaded Mount; UVFS Reflective ND Filter; OD 0.5 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV10A Dia. 25 mm SM1-Threaded Mount; UVFS Reflective ND Filter; OD 1.0 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV13A Dia. 25 mm SM1-Threaded Mount; UVFS Reflective ND Filter; OD 1.3 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV30A Dia. 25 mm SM1-Threaded Mount; UVFS Reflective ND Filter; OD 3.0 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV2R03A Dia. 50 mm SM2-Threaded Mount; UVFS Reflective ND Filter; OD 0.3 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV2R04A Dia. 50 mm SM2-Threaded Mount; UVFS Reflective ND Filter; OD 0.4 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV2R05A Dia. 50 mm SM2-Threaded Mount; UVFS Reflective ND Filter; OD 0.5 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV2R10A Dia. 50 mm SM2-Threaded Mount; UVFS Reflective ND Filter; OD 1.0 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDUV2R20A Dia. 50 mm SM2-Threaded Mount; UVFS Reflective ND Filter; OD 2.0 | Optics | Filter | Neutral Density Filter | Thorlabs | UVFS | Circular | | |
| NDIR03A Dia. 25 mm; SM1-Threaded Mount; IR Reflective Neutral Density Filter; OD 0.3 | Optics | Filter | Neutral Density Filter | Thorlabs | ZnSe | Circular | | |
| NDIR10A Dia. 25 mm; SM1-Threaded Mount; IR Reflective Neutral Density Filter; OD 1.0 | Optics | Filter | Neutral Density Filter | Thorlabs | ZnSe | Circular | | |
| 27002 C 25 mm Dia. H-alpha 5nm Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 652.5 nm | 647.5 nm |
| 27004 C 25 mm Dia. H-beta 3nm Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 486.5 nm | 483.5 nm |
| 27005 C 25 mm Dia. H-beta 5nm Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 487.5 nm | 482.5 nm |
| 27006 C 25 mm Dia. OIII 3nm Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 501.5 nm | 498.5 nm |
| 27007 C 25 mm Dia. OIII 5nm Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 502.5 nm | 497.5 nm |
| 27008 C 25 mm Dia. OIII 8nm Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 504 nm | 496 nm |
| 27011 C 25 mm Dia. SII 8nm Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 674 nm | 666 nm |
| 27030 C 25 mm Dia. LoGlow Light Pollution Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | | |
| 27050 C 25 mm Dia. U-Bessell Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | | |
| 27052 C 25 mm Dia. B-Bessell Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | | |
| 27053 C 25 mm Dia. R-Bessell Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | | |
| At350-50X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 375 nm | 325 nm |
| At425-50X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 450 nm | 400 nm |
| At435-20X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 445 nm | 425 nm |
| At450-50X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 475 nm | 425 nm |
| At460-50M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 485 nm | 435 nm |
| At495-20X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 505 nm | 485 nm |
| At545-30M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 560 nm | 530 nm |
| At560-40X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 580 nm | 540 nm |
| At565-30M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 580 nm | 550 nm |
| At585-30M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 600 nm | 570 nm |
| At620-50X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 645 nm | 595 nm |
| At620-60M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 650 nm | 590 nm |
| At655-30M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 670 nm | 640 nm |
| At690-50M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 715 nm | 665 nm |
| Et214-20Bp C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 224 nm | 204 nm |
| Et250-20Bp C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 260 nm | 240 nm |
| Et254-10Bp C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 259 nm | 249 nm |
| Et270-15Bp C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 277.5 nm | 262.5 nm |
| Et325-20Bp C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 335 nm | 315 nm |
| Et340X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 345.5 nm | 334.5 nm |
| Et376-30X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 391 nm | 361 nm |
| Et395-25X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 407.5 nm | 382.5 nm |
| Et402-15X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 409.5 nm | 394.5 nm |
| Et405-10X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 410 nm | 400 nm |
| Et434-32M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 450 nm | 418 nm |
| Et436-20X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 446 nm | 426 nm |
| Et445-30X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 460 nm | 430 nm |
| ET445-58m C 25 mm Dia. Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 474 nm | 416 nm |
| Et448-19X C 25 mm Dia. Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 457.5 nm | 438.5 nm |
| Et455-50M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 480 nm | 430 nm |
| Et460-30X C 25 mm Dia. Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 475 nm | 445 nm |
| Et470-24M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 482 nm | 458 nm |
| Et473-24M C 25 mm Dia. Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 485 nm | 461 nm |
| Et480-30X C 25 mm Dia. Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 495 nm | 465 nm |
| Et480-40X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 500 nm | 460 nm |
| Et482-27M C 25 mm Dia. Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 495.5 nm | 468.5 nm |
| Et495-10X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 500 nm | 490 nm |
| Et495-25X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 507.5 nm | 482.5 nm |
| Et500-20X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 510 nm | 490 nm |
| Et500-40M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 520 nm | 480 nm |
| Et500-40X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 520 nm | 480 nm |
| Et519-26M C 25 mm Dia. Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 532 nm | 506 nm |
| Et520-20M C 25 mm Dia. Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 530 nm | 510 nm |
| Et520-40M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 540 nm | 500 nm |
| Et525-20M C 25 mm Dia. Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 535 nm | 515 nm |
| Et525-30M C 25 mm Dia. Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 540 nm | 510 nm |
| Et525-50M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 550 nm | 500 nm |
| Et530-30X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 545 nm | 515 nm |
| Et535-30M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 550 nm | 520 nm |
| Et535-50M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 560 nm | 510 nm |
| Et535-70M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 570 nm | 500 nm |
| Et537-29M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 551.5 nm | 522.5 nm |
| Et540-30M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 555 nm | 525 nm |
| Et540-40M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 560 nm | 520 nm |
| Et545-25X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 557.5 nm | 532.5 nm |
| Et545-30X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 560 nm | 530 nm |
| Et545-40M C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 565 nm | 525 nm |
| Et550-15X C 25 mm Dia. Sputter Hard Coated; Bandpass Filter | Optics | Filter | Bandpass Filter | Chroma | UVFS | Circular | 557.5 nm | 542.5 nm |