NEUTRAL DENSITY FILTERS - ABSORPTIVE Specification MATERIAL; SCHOTT ® FILTER GLASS SCHOTT ® FILTER GLASS SCHOTT ® FILTER GLASS DIMENSION: Ø 12.5mm +0.00/-0.20mm Ø 25mm +0.00/-0.20mm 50x50mm +/-0.20mm THICKNESS: ± 0.10mm ± 0.10mm ± 0.10mm EDGES: Fine Ground Fine Ground Fine Ground SURFACE QUALITY: 60/40 60/40 60/40 FLATNESS: ≤ 3 Fringes ≤ 5 Fringes ≤ 8 Fringes OPTICAL DENSITY: O.D >1.0 ± 5% @546nm O.D <1.0 ± 0.05 @546nm O.D >1.0 ± 5% @546nm O.D <1.0 ± 0.05 @546nm O.D >1.0 ± 5% @546nm O.D <1.0 ± 0.05 @546nm PARALLELISM: ≤ 3 Arc Min ≤ 5 Arc Min ≤ 8 Arc Min Custom:

Part No. Description Dimensions (mm) Thickness (mm) Optical Density Transmissiion @ 546nm Unit Price (1-9) Qty (1-9) Qty (10+) FND-1201 ND Filter NG11 Ø 12.5 0.6 0.1 79% £11.50 1 2 3 4 5 6 7 8 9       FND-2501 ND Filter NG11 Ø 25 0.6 0.1 79% £19.00 1 2 3 4 5 6 7 8 9       FND-5001 ND Filter NG11 50x50 0.6 0.1 79% £34.00 1 2 3 4 5 6 7 8 9       FND-5050 ND Filter NG11 50x50 1.0 0.1 71% £34.00 1 2 3 4 5 6 7 8 9       FND-1250 ND Filter NG11 Ø 12.5 1.0 0.15 71% £11.50 1 2 3 4 5 6 7 8 9       FND-2550 ND Filter NG11 Ø 25 1.0 0.15 71% £19.00 1 2 3 4 5 6 7 8 9       FND-1202 ND Filter NG11 Ø 12.5 1.4 0.2 63% £11.50 1 2 3 4 5 6 7 8 9       FND-2502 ND Filter NG11 Ø 25 1.4 0.2 63% £19.00 1 2 3 4 5 6 7 8 9       FND-5002 ND Filter NG11 50x50 1.4 0.2 63% £34.00 1 2 3 4 5 6 7 8 9       FND-1203 ND Filter NG11 Ø 12.5 2.3 0.3 50% £11.50 1 2 3 4 5 6 7 8 9       FND-2503 ND Filter NG11 Ø 25 2.3 0.3 50% £19.00 1 2 3 4 5 6 7 8 9       FND-5003 ND Filter NG11 50x50 2.3 0.3 50% £34.00 1 2 3 4 5 6 7 8 9       FND-1204 ND Filter NG11 Ø 12.5 3.3 0.4 40% £11.50 1 2 3 4 5 6 7 8 9       FND-2504 ND Filter NG11 Ø 25 3.3 0.4 40% £19.00 1 2 3 4 5 6 7 8 9       FND-5004 ND Filter NG11 50x50 3.3 0.4 40% £34.00 1 2 3 4 5 6 7 8 9       FND-1205 ND Filter NG11 Ø 12.5 4.0 0.5 32% £11.50 1 2 3 4 5 6 7 8 9       FND-2505 ND Filter NG11 Ø 25 4.0 0.5 32% £19.00 1 2 3 4 5 6 7 8 9       FND-5005 ND Filter NG11 50x50 4.0 0.5 32% £34.00 1 2 3 4 5 6 7 8 9       FND-1206 ND Filter NG5 Ø 12.5 2.3 0.6 25% £11.50 1 2 3 4 5 6 7 8 9       FND-2506 ND Filter NG5 Ø 25 2.3 0.6 16% £19.00 1 2 3 4 5 6 7 8 9       FND-5006 ND Filter NG5 50x50 2.3 0.6 25% £34.00 1 2 3 4 5 6 7 8 9       FND-1207 ND Filter NG5 Ø 12.5 2.7 0.7 20% £11.50 1 2 3 4 5 6 7 8 9       FND-2507 ND Filter NG5 Ø 25 2.7 0.7 20% £19.00 1 2 3 4 5 6 7 8 9       FND-5007 ND Filter NG5 50x50 2.7 0.7 20% £34.00 1 2 3 4 5 6 7 8 9       FND-1208 ND Filter NG5 Ø 12.5 3 0.8 16% £11.50 1 2 3 4 5 6 7 8 9       FND-2508 ND Filter NG5 Ø 25 3.0 0.8 16% £19.00 1 2 3 4 5 6 7 8 9       FND-5008 ND Filter NG5 50x50 3.0 0.8 16% £34.00 1 2 3 4 5 6 7 8 9       FND-1209 ND Filter NG5 Ø 12.5 3.2 0.9 13% £11.50 1 2 3 4 5 6 7 8 9       FND-2509 ND Filter NG5 Ø 25 3.2 0.9 13% £19.00 1 2 3 4 5 6 7 8 9       FND-5009 ND Filter NG5 50x50 3.2 0.9 13% £34.00 1 2 3 4 5 6 7 8 9       FND-1210 ND Filter NG5 Ø 12.5 3.9 1 10% £11.50 1 2 3 4 5 6 7 8 9       FND-2510 ND Filter NG5 Ø 25 3.9 1 10% £19.00 1 2 3 4 5 6 7 8 9       FND-5010 ND Filter NG5 50x50 3.9 1 10% £34.00 1 2 3 4 5 6 7 8 9       FND-1213 ND Filter NG4 Ø 12.5 2.4 1.3 5% £11.50 1 2 3 4 5 6 7 8 9       FND-2513 ND Filter NG4 Ø 25 2.4 1.3 5% £19.00 1 2 3 4 5 6 7 8 9       FND-5013 ND Filter NG4 50x50 2.4 1.3 5.00% £34.00 1 2 3 4 5 6 7 8 9       FND-1215 ND Filter NG4 Ø 12.5 2.9 1.5 3.20% £11.50 1 2 3 4 5 6 7 8 9       FND-2515 ND Filter NG4 Ø 25 2.9 1.5 3.20% £19.00 1 2 3 4 5 6 7 8 9       FND-5015 ND Filter NG4 50x50 2.9 1.5 3.20% £34.00 1 2 3 4 5 6 7 8 9       FND-1220 ND Filter NG4 Ø 12.5 3.8 2 1% £11.50 1 2 3 4 5 6 7 8 9       FND-2520 ND Filter NG4 Ø 25 3.8 2 1% £19.00 1 2 3 4 5 6 7 8 9       FND-5020 ND Filter NG4 50x50 3.8 2 1% £34.00 1 2 3 4 5 6 7 8 9       FND-1223 ND Filter NG3 Ø 12.5 2.2 2.3 0.50% £11.50 1 2 3 4 5 6 7 8 9       FND-2523 ND Filter NG3 Ø 25 2.2 2.3 0.50% £19.00 1 2 3 4 5 6 7 8 9       FND-5023 ND Filter NG3 50x50 2.2 2.3 0.50% £34.00 1 2 3 4 5 6 7 8 9       FND-1225 ND Filter NG3 Ø 12.5 2.4 2.5 0.32% £11.50 1 2 3 4 5 6 7 8 9       FND-2525 ND Filter NG3 Ø 25 2.4 2.5 0.32% £19.00 1 2 3 4 5 6 7 8 9       FND-5025 ND Filter NG3 50x50 2.4 2.5 0.32% £34.00 1 2 3 4 5 6 7 8 9       FND-1230 ND Filter NG3 Ø 12.5 2.9 3 0.10% £11.50 1 2 3 4 5 6 7 8 9       FND-2530 ND Filter NG3 Ø 25 2.9 3 0.10% £19.00 1 2 3 4 5 6 7 8 9       FND-5030 ND Filter NG3 50x50 2.9 3 0.10% £34.00 1 2 3 4 5 6 7 8 9       FND-1240 ND Filter NG3 Ø 12.5 3.9 4 0.01% £11.50 1 2 3 4 5 6 7 8 9       FND-2540 ND Filter NG3 Ø 25 3.9 4 0.01% £19.00 1 2 3 4 5 6 7 8 9