is 215.15 KB, has a resolution of 1024x1024 pixels and was uploaded on December 3, 2019 @ 10:55 pm by user: eugenier. It is filed under the tags: achromatic lens, henry siedentopf, eyepiece, darkfield microscopy, optical microscope. Click the blue button at the top to freely download: Microscope Optical Optics Operating Phase Contrast Microscopy png.