| 515HC90-12.5 12.5mm Dia. 514.5nm Borosilicate Glass Hard-Coated Broadband Bandpass Filter, HBW 90nm | Optics | Filter | Bandpass Filter | Andover Corporation | Borofloat33 | Circular | 559.5 nm | 469.5 nm |
| 532HC150-12.5 12.5mm Dia. 532nm Borosilicate Glass Hard-Coated Broadband Bandpass Filter, HBW 150nm | Optics | Filter | Bandpass Filter | Andover Corporation | Borofloat33 | Circular | 607 nm | 457 nm |
| 550HC300-25 25mm Dia. 550nm Borosilicate Glass Hard-Coated Broadband Bandpass Filter, HBW 300nm | Optics | Filter | Bandpass Filter | Andover Corporation | Borofloat33 | Circular | 700 nm | 400 nm |
| 550HC300-50 50mm Dia. 550nm Borosilicate Glass Hard-Coated Broadband Bandpass Filter, HBW 300nm | Optics | Filter | Bandpass Filter | Andover Corporation | Borofloat33 | Circular | 700 nm | 400 nm |
| 785HC170-25 25mm Dia. 785nm Borosilicate Glass Hard-Coated Broadband Bandpass Filter, HBW 170nm | Optics | Filter | Bandpass Filter | Andover Corporation | Borofloat33 | Circular | 870 nm | 700 nm |
| 785HC170-50 50mm Dia. 785nm Borosilicate Glass Hard-Coated Broadband Bandpass Filter, HBW 170nm | Optics | Filter | Bandpass Filter | Andover Corporation | Borofloat33 | Circular | 870 nm | 700 nm |
| 2.70GA05-25 25mm Dia. 2700nm Sapphire Standard IR Bandpass Filter, HBW 120.0nm | Optics | Filter | Bandpass Filter | Andover Corporation | Sapphire | Circular | 2755 nm | 2645 nm |
| 4.00GA20-50 50mm Dia. 4000nm Silicon Standard IR Bandpass Filter, HBW 2000nm | Optics | Filter | Bandpass Filter | Andover Corporation | Silicon | Circular | 5000 nm | 3000 nm |
| 10.00GA40-50 50mm Dia. 10000nm Silicon Standard IR Bandpass Filter, HBW 4000nm | Optics | Filter | Bandpass Filter | Andover Corporation | Silicon | Circular | 12000 nm | 8000 nm |
| 4.70GA05-25 25mm Dia. 4670nm Sapphire Standard IR Bandpass Filter, HBW 150nm | Optics | Filter | Bandpass Filter | Andover Corporation | Sapphire | Circular | 4745 nm | 4595 nm |
| 030FNIR-50 50mm Dia. OD=0.3, Germanium Standard IR Neutral Density Filter, 2000-14000nm | Optics | Filter | Neutral Density Filter | Andover Corporation | Germanium | Circular | | |
| 050FNIR-12.5 12.5mm Dia. OD=0.5, Germanium Standard IR Neutral Density Filter, 2000-14000nm | Optics | Filter | Neutral Density Filter | Andover Corporation | Germanium | Circular | | |
| 050FNIR-50 50mm Dia. OD=0.5, Germanium Standard IR Neutral Density Filter, 2000-14000nm | Optics | Filter | Neutral Density Filter | Andover Corporation | Germanium | Circular | | |
| 060FNIR-25 25mm Dia. OD=0.6, Germanium Standard IR Neutral Density Filter, 2000-14000nm | Optics | Filter | Neutral Density Filter | Andover Corporation | Germanium | Circular | | |
| 070FNIR-25 25mm Dia. OD=0.7, Germanium Standard IR Neutral Density Filter, 2000-14000nm | Optics | Filter | Neutral Density Filter | Andover Corporation | Germanium | Circular | | |
| 070FNIR-50 50mm Dia. OD=0.7, Germanium Standard IR Neutral Density Filter, 2000-14000nm | Optics | Filter | Neutral Density Filter | Andover Corporation | Germanium | Circular | | |
| 080FNIR-12.5 12.5mm Dia. OD=0.8, Germanium Standard IR Neutral Density Filter, 2000-14000nm | Optics | Filter | Neutral Density Filter | Andover Corporation | Germanium | Circular | | |
| 080FNIR-50 50mm Dia. OD=0.8, Germanium Standard IR Neutral Density Filter, 2000-14000nm | Optics | Filter | Neutral Density Filter | Andover Corporation | Germanium | Circular | | |
| 090FNIR-50 50mm Dia. OD=0.9, Germanium Standard IR Neutral Density Filter, 2000-14000nm | Optics | Filter | Neutral Density Filter | Andover Corporation | Germanium | Circular | | |
| FNDU-50C02-60 50 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-25C02-40 25 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-25-5 25 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-52-80 52 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-25C02-70 25 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-25-30 25 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-30C02-0.1 30 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-30C02-40 30 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-30C02-70 30 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-20C02-20 20 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-50C02-0.1 50 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-30-60 30 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-30-92 30 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-52-5 52 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-50C02-70 50 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-25C02-20 25 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-52-60 52 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-25C02-50 25 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-25-70 25 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-30C02-20 30 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-30C02-50 30 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-20C02-5 20 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-30C02-80 30 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-20C02-30 20 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-20C02-60 20 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-50C02-20 50 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-50C02-50 50 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-52-10 52 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-50C02-80 50 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-25C02-30 25 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-52-70 52 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-25C02-60 25 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-25C02-92 25 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-30C02-5 30 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-25-80 25 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| FNDU-30C02-30 30 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFNDU-30-1 30 mm Dia. Mounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm | Optics | Filter | Neutral Density Filter | OptoSigma | UVFS | Circular | | |
| MFND-25-40 25 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-30C02-1 30 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-15C02-60 15 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-15C02-92 15 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-30-40 30 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-20C02-30 20 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-30-70 30 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-20C02-60 20 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-52-0.1 52 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-50C02-50 50 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-52-10 52 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-25C02-5 25 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-52-40 52 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-52-70 52 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-15C02-0.1 15 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-25C02-60 25 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-25-20 25 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-15C02-40 15 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-15C02-70 15 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-30C02-30 30 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-30-1 30 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-20C02-10 20 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-30C02-92 30 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-20C02-40 20 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-25C02-0.1 25 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-50C02-60 50 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-25C02-10 25 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-50C02-92 50 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-52-50 52 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-25C02-40 25 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-52-80 52 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-25C02-70 25 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-25-30 25 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-30C02-0.1 30 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-15C02-50 15 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-30-5 30 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-30C02-70 30 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-30-30 30 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-50C02-0.1 50 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-30-92 30 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-25C02-1 25 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| FND-50C02-70 50 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-52-30 52 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |
| MFND-25-0.1 25 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm | Optics | Filter | Neutral Density Filter | OptoSigma | N-BK7 | Circular | | |