Leica Microscope PH3 Phase Ring Retrofit Compatible

27mm Phase Contrast Set for Leitz Microscopes Retrofit Compatible

Phase Contrast Set 27mm Diameter Compatible w/ LEICA Microscope

Leica Microscope PH1 Phase Ring Retrofit Compatible

27mm - Quarter Wave Microscope Lambda Plate Leitz, Leica compatible - See Specs

Leica Leitz Microscope 11555106 3S23 2S70 Phase Ring for Condenser Slider

27mm sPECIAL EFFECTS , Microscope Filters - Leitz, Leica Compatible

Leica Leitz Microscope 513637 Ph1 S95 Phase Ring for Condenser, 29mm OD