Strew slide from Allan’s Farm, Oamaru, New Zealand. Wide variety of species. Mounted in Styraclor and dated November 1996. Prepared by Bernard Hartley. Olympus BHB microscope using 450nm LED light. I chose an example of an Coscinodiscus sp. (maybe C. debilis) for high magnification imaging. 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. 25 images stacked in Zerene (Pmax). Some debris under the diatom at the 9 o’clock position.