27mm Phase Contrast Set for Leitz Microscopes Retrofit Compatible

Microscope Darkfield Set For Older Leitz Microscopes - 55 Condenser or eq.

Microscope 32mm Rheinberg Filters Set With Darkfield Lighting - Marvelous Set!!!

OLYMPUS VERTICAL ILLUMINATOR - Used

AmScope DK-S Darkfield Condenser for Stereo Microscopes

Wild Microscope Darkfield Condenser

Microscope 32mm Set of 8 Annuli + Darkfield Center Stop - Very Interesting Set!!

AmScope AD-C23 Adapter Set Converting C-mount to 23mm and/or 30mm Photo Port