Phv variable phase contrast slide insert for 4x objective for EPI Reflected Light condenser illuminator Carl Zeiss Jena NU / NU2 microscope - the first photo
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Phv variable phase contrast slide insert for 4x objective for EPI Reflected Light condenser illuminator Carl Zeiss Jena NU / NU2 microscope
(Carl Zeiss Jena NU / NU2 microscope 4x Phase Contrast Variable Phv EPI slide ring insert)