Transmission optics holders that do not require optical alignment, such as ND filters and color filters. Designed to suit different thicknesses and facilitate filter replacement.
The manufacturer is OptoSigma, which guarantees the highest quality
Filter holders for filters with diameters of 10 – 52mm (Optosigma FHS-25-N, FHS-50-N, FH-10-N, FH-25, FHS-50-EE, FAD-20, FH-50, FHS-25-UU, FAD-50, FHS-20-N, FHS-25-EE, FHS-50-UU)
See the manufacturer’s website for detailed technical information – OptoSigma