bids are invited for optical accessories mse linear polarizer , precision rotation mount for 1 inch optics , uvfs plate beam splitter , mounted 25.0 mm absorptive nd filter od 1 , mounted 25.0 mm absorptive nd filter od 2 , mounted 25.0 mm absorptive nd filter od 3 , mounted 25.0 mm absorptive nd filter od 0.5 , 12.7 mm pedestal post holder, metric, length 54.7 , 12.7 mm pedestal post holder , metric, length 44.7 , 12.7 mm optical post, length 50mm , 12.7 mm optical post, length 70mm , large clamping fork , ba2.m mounting base, metric, size 50mm x 75mm x 10mm , ba1.m mounting base , metric , size 25mm x 75mm x 10mm , translating lens mount , kinematic prism mount , large adjustable clamping arm , mounted standard iris , complete periscope assembly, metric , 45 mounting adapter, m4 and m6 taps total quantity : 146