An arrangement of three Actinocyclus ehrenbergii from New Jersey, USA. Prepared by WA Firth. Olympus BHB microscope using 450nm LED light. 20x Nikon Plan Apo NA 0.65 objective. Olympus Aplanat Achromat condenser, brightfield lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 35 images stacked in Zerene (Pmax). Also shown as a video clip where focus depth is varied, and a dark ground image, with the same objective, lit using a Reichert Neo 1.42/1.18 condenser with oil immersion and 450nm LED light.