![](https://diatomimaging.com/wp-content/uploads/2024/04/2024-04-06-07.22.18-ZS-retPM-mod-lab-copyright.jpg)
![](https://diatomimaging.com/wp-content/uploads/2024/04/20240406_153404.jpg)
Auliscus polyphemus from Cave Valley, Oamaru, New Zealand. Single example on the slide. Prepared by WA Firth. Olympus BHB microscope using 450nm LED light. 63x Leitz Pl Apo NA 1.40 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, slightly oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 34 images stacked in Zerene (Pmax). Quite a low contrast slide.