Accessory Focus Distance Spot Size Sensitivity MS-75 (14" to ∞) 14 " (355 mm) 1000 ft (305 m) .208" (5.25 mm) 209" (5.32 m) ≥1.0 - ≤5,000 fl ≥3.4 - <17,000 cd/m² SL-0.5X 3.6" (91.4 mm) to 5.4" (137 mm) 0.059" (1.5 mm) to 0.10" (2.54 mm) ≥1.0 - ≤5,000 fl ≥3.4 - ≤17,000 cd/m² SL-1X 1.8" (46 mm) to 2.6" (66 mm) 0.035" (0.89 mm) to 0.052" (1.32 mm) ≥1.0 - ≤5,000 fl ≥3.4 - ≤17,000 cd/m² MS-2.5X 1.81" (46 mm) 0.020" (0.51 mm) ≥3.0 - ≤10,000 fl ≥10.3 - ≤51,400 cd/m² MS-5X 1.11 in. (28 mm) 0.011 in. (0.289 mm) ≥4 - ≤ 15,000 fl ≥13.7 - ≤ 51,400 cd/m² CR-600 Cosine Receptor N/A N/A ≥2.0 - ≤12,000 fc ≥21.5 - ≤107,700 lux LA-600 Luminance Adapter Contact 0.52" (13.2 mm) ≥1.0 - ≤5,000 fl ≥3.4 - <17,000 cd/m² FP-600 Fiber Probe Contact 0.125" (3.17 mm) ≥2.5 - ≤12,000 fl ≥8.6 - ≤43,000 cd/m²

NOTES:

1. For the ND-650-2 (Used only with the MS-75 or SL-1X or SL-0.5X), multiply the Sensitivity by 100.
2. All values calculated measuring Illuminant A at @ ³ 100:1 signal to noise (1% precision).