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. 2023 Jul 31;116(10):919–935. doi: 10.1007/s10482-023-01859-4

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — Photographs taken with facsimile Van Leeuwenhoek microscopes. A Fossil diatom mixture, using a microscope with 65 × magnification, a Canon EOS 60D camera body and a Tamron zoom 1:1 macro lens. B Bacteria and protozoa, using a microscope with 302× magnification, a Canon EOS 60D camera body and a Tamron zoom 1:1 macro lens. C Vorticella sp. from a stream in the Delft Botanic Garden. Microscope with 116× magnification, a Canon EOS 550D camera body and a Tamron zoom 1:1 macro lens. D Cyanobacteria and a rotifer in a sample of water from the Delftsehout, a shallow lake near Delft. Microscope with 116× magnification, a Canon EOS 550D camera body and a Tamron zoom 1:1 macro lens. (Robertson 2015a)