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

33mm Dia. Microscope Darkfield and Oblique Illumination Set

29mm Dark Field / Oblique Microscope Filter Set

33mm Microscope Darkfield Oblique and Special Effects Filters

45mm Diameter Microscope Darkfield and Oblique Illumination Set

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

36mm Microscope Darkfield/Oblique Set . Will Fit some Olympus BX or Eq.

32mm Microscope Set Darkfield Oblique Sp. Effects Compatible Zeiss, Lomo+EQ