SPESIFIKASI :
Blue(B) Filter
Substrate : High-quality optical glass
Surface Treatment : Fine-optically polished
Surface Polish Quality : 60/40 (Refer to MIL-O-13830)
Surface Quality : 1/4 wavefront
Transmission : more than 70% for U, more than 90% for the other four pass-bands
Cell : 1.25" filter cell
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