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Reflection contrast microscopy performed on epi‐illumination microscope stands: Comparison of reflection contrast‐ and epi‐polarization microscopy

In reflection contrast microscopy (RCM) special optics such as a quarter‐wave plate and a central stop are used, the latter being unique for Leitz microscope stands and contributing much to contrast enhancement of the image. In this paper we demonstrate that a cap or prism, linked by oil immersion to the glass slide, can be used instead of this central stop. Thus, microscope stands with incident illumination may be used for RCM.