This Thorlabs' Absorptive Neutral Density (ND) Filter Kit offers our most popular filters prepackaged in convenient metal storage boxes. The Dia. 1/2" Absorptive ND Filters are mounted in SM05 series lens tubes, the Dia.
1" Absorptive ND Filters are mounted in SM1 series lens ...This Thorlabs' Absorptive Neutral Density (ND) Filter Kit offers our most popular filters prepackaged in convenient metal storage boxes. The Dia. 1/2" Absorptive ND Filters are mounted in SM05 series lens tubes, the Dia.
1" Absorptive ND Filters are mounted in SM1 series lens tubes, and the Dia. 2" absorptive ND filters are mounted in SM2 series lens tubes. In all cases the housing is engraved with the optical density.
Same-size lens tubes are stackable, making it possible to create an additive optical density effect. The Absorptive 2" Square Filters can be mounted in our stackable filter holders, also making it possible to create an additive optical density effect. Each set of filters is housed in a metal storage box for convenient storage and transportation.