33mm Dia. Microscope Darkfield and Oblique Illumination Set

29mm Dark Field / Oblique Microscope Filter Set

31mm Diameter Circular Oblique Illumination – COL - Microscope Filter Set

35mm Microscope Set Darkfield Oblique Special Effects Filters

Microscope Darkfield Set 45 mm Insertion Diameter

26mm Diameter Microscope Darkfield and Oblique Illumination Set

25mm Diameter Circular Oblique Illumination – COL - Microscope Filter Set

45mm Diameter Microscope Darkfield and Oblique Illumination Set