The FW-series filter wheels provide a compact, convenient filter organizer complete with mechanical indexing for precise alignment. Two wheel options are provided to accommodate both Ø1/2" and Ø1" filters in 6, 12, and 24 configurations. The threaded bores contain small rear-located retaining walls that provide a solid stop for fastening filters while maintaining a large clear aperture.

      Common configurations of filter wheels include progressive ND filters, allowing for quick adjustment of intensity attenuation.

      Up to two filter wheels can exist on one base assembly allowing for combinations of up to 24 ND filters or chromatic filters such as short and long-pass color filters. The modular design allows the filter wheels to be easily interchanged and either base or post-mounted.