An arrangement with seven examples of Stephanodiscus diatoms. Some mnovement of the diatoms. Prepared by Flatters and Garnett Ltd. Mounted in Hyrax. Two selected for higher resolution imaging (diatoms 1 and 3 from the left looking at the 10x objective image). Olympus BHB microscope using 450nm LED light. 63x Leitz Pl Apo 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. Image stacks prepared in Zerene (Pmax). 49 images for the larger diatom and 25 images for the smaller one.