Pinnularia sp. Single example on the slide. Prepared by AC Cole. No location given. Olympus BHB microscope using 450nm LED light. 60x Olympus Splan Apo NA 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, brightfield lighting. Olympus 2.5x NFK photoeyepiece. Monochrome converted Nikon d800 camera. 16 images stacked in Zerene (Pmax).