Honolulu arrangement, Northern Biological Supplies

Honolulu arrangement
Honolulu arrangement, 4x Nikon Plan Apo NA 0.20 objective

An arrangement of 10 selected forms from Honolulu. Prepared by Northern Biological Supplies. Mounted in Hyrax. One of the diatoms has moved and is partially obscuring its neighbour. Looking at the wider field of view there are actually 2 more diatoms, at about the 3 o’clock and 6 o’clock positions. 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. 18 images stacked in Zerene (Pmax).