| FNG4025 25 mm Dia. Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG3050 50 x 50 mm Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG3020 20 x 25 mm Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG2525 25 mm Dia. Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG2513 12.5 mm Dia. Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG2050 50 x 50 mm Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG2013 12.5 mm Dia. Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG1550 50 x 50 mm Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG1050 50 x 50 mm Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG0850 50 x 50 mm Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG0825 25 mm Dia. Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG0650 50 x 50 mm Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG0413 12.5 mm Dia. Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG0325 25 mm Dia. Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG0250 50 x 50 mm Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG0225 25 mm Dia. Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNG0213 12.5 mm Dia. Absorptive Glass Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNU3050 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNU2050 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNU1550 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNU1525 25 mm Dia. Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNU0850 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNU0725 25 mm Dia. Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNU0513 12.5 mm Dia. Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNU0325 25 mm Dia. Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNU0150 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNU00325 25 mm Dia. Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | UVFS |
| FNM3050 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM3025 25 mm Dia. Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM1550 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM1525 25 mm Dia. Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM1050 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM0750 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM0650 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM0550 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM0513 12.5 mm Dia. Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM0425 25 mm Dia. Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM0350 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM0250 50 x 50 mm Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| FNM0225 25 mm Dia. Metallic Neutral Density Filter 546nm | Optics | Filter | Neutral Density Filter | Knight Optical | N-BK7 |
| 525FWP7575 75 x 75 mm Bandpass Wratten Colour Filter 525nm | Optics | Filter | Bandpass Filter | Knight Optical | UVFS |
| 528FWP7575 75 x 75 mm Longpass Wratten Colour Filter 528nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 600FWP7575 75 x 75 mm Longpass Wratten Colour Filter 600nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 717FWP7575 75 x 75 mm Longpass Wratten Colour Filter 717nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 411FWP7575 75 x 75 mm Longpass Wratten Colour Filter 411nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 510FAP5050 50 x 50 mm Acrylic Colour Longpass Filter 510nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 420FAP5050 50 x 50 mm Acrylic Colour Longpass Filter 420nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 850FAP550400 400 x 550 mm Acrylic Colour Longpass Filter 850nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 850FAP2500 25 mm Dia. Acrylic Colour Longpass Filter 850nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 685FAP2500 25 mm Dia. Acrylic Colour Longpass Filter 685nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 650FAP550400 400 x 550 mm Acrylic Colour Longpass Filter 650nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 650FAP2500 25 mm Dia. Acrylic Colour Longpass Filter 650nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 620FAP550400 400 x 550 mm Acrylic Colour Longpass Filter 620nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 620FAP2500 25 mm Dia. Acrylic Colour Longpass Filter 620nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 585FAP550400 400 x 550 mm Acrylic Colour Longpass Filter 585nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 585FAP5050 50 x 50 mm Acrylic Colour Longpass Filter 585nm | Optics | Filter | Longpass Filter | Knight Optical | UVFS |
| 700FCQ6565 65 x 65 mm Cold Mirror 800-1200nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 700FCQ4040 40 x 40 mm Cold Mirror 800-1200nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 700FCQ4025 25 x 40 mm Cold Mirror 800-1200nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 700FCQ4000 40 mm Dia. Cold Mirror 800-1200nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 700FCQ2525 25 x 25 mm Cold Mirror 800-1200nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 700FCQ2515 15 x 25 mm Cold Mirror 800-1200nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 700FCQ160100 100 x 160 mm Cold Mirror 800-1200nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 700FCQ10065 65 x 100 mm Cold Mirror 800-1200nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 730FHQ6565 65 x 65 mm Hot Mirror 425-710nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 730FHQ5050 50 x 50 mm Hot Mirror 425-710nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 730FHQ4040 40 x 40 mm Hot Mirror 425-710nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 730FHQ4000 40 mm Dia. Hot Mirror 425-710nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 730FHQ2525 25 x 25 mm Hot Mirror 425-710nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 730FHQ2500 25 mm Dia. Hot Mirror 425-710nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 730FHQ100100 100 x 100 mm Hot Mirror 425-710nm | Optics | Filter | Hot/Cold Mirror | Knight Optical | N-BK7 |
| 521FDL50 50 x 50 mm Longpass Dichroic Filter 521nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 521FDL12 12.5 mm Dia. Longpass Dichroic Filter 521nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 510FDL50 50 x 50 mm Longpass Dichroic Filter 510nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 510FDL25 25 mm Dia. Longpass Dichroic Filter 510nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 510FDL12 12.5 mm Dia. Longpass Dichroic Filter 510nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 500FDL50 50 x 50 mm Longpass Dichroic Filter 500nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 500FDL25 25 mm Dia. Longpass Dichroic Filter 500nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 500FDL12 12.5 mm Dia. Longpass Dichroic Filter 500nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 490FDL50 50 x 50 mm Longpass Dichroic Filter 490nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 490FDL12 12.5 mm Dia. Longpass Dichroic Filter 490nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 480FDL25 25 mm Dia. Longpass Dichroic Filter 480nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 420FDL12 12.5 mm Dia. Longpass Dichroic Filter 420nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 740FDL25 25 mm Dia. Longpass Dichroic Filter 750nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 740FDL12 12.5 mm Dia. Longpass Dichroic Filter 750nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 635FDL25 25 mm Dia. Longpass Dichroic Filter 635nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 615FDL50 50 x 50 mm Longpass Dichroic Filter 615nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 615FDL12 12.5 mm Dia. Longpass Dichroic Filter 615nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 600FDL50 50 x 50 mm Longpass Dichroic Filter 600nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 600FDL12 12.5 mm Dia. Longpass Dichroic Filter 600nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 565FDL25 25 mm Dia. Longpass Dichroic Filter 565nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 540FDL50 50 x 50 mm Longpass Dichroic Filter 540nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 540FDL25 25 mm Dia. Longpass Dichroic Filter 540nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 540FDL12 12.5 mm Dia. Longpass Dichroic Filter 540nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 530FDL50 50 x 50 mm Longpass Dichroic Filter 530nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 520FDS50 50 x 50 mm Shortpass Dichroic Filter 520nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 520FDS25 25 mm Dia. Shortpass Dichroic Filter 520nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 510FDS50 50 x 50 mm Shortpass Dichroic Filter 510nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 500FDS25 25 mm Dia. Shortpass Dichroic Filter 500nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |
| 500FDS12 12.5 mm Dia. Shortpass Dichroic Filter 500nm | Optics | Filter | Dichroic Filter | Knight Optical | N-BK7 |