Diatoms in a Different Light
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Scan day: 17 February 2014 UTC
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Description: Article by Roland Mortimer on these organisms, with a small image gallery of different freshwater species.
Previous Micscape articles by the author on diatoms are here - After hearing so much about the versatility of CCD cameras I finally decided to buy one and try it out, but first I installed a video capture board in my old computer to enable me to capture the images of the diatoms from my microscope. The very versatile Heine condenser came into play here too, and once more proved itself to be an extremely useful tool. Moving the condenser element up and down the tube I finally got to a certain position where the condenser threw the light slightly obliquely and the results were really impressive as can be seen from the images in this article. Although they are captured electronic images they have had no further 'treatment' from my computer imaging programmes. As can be seen in some of the images the diatoms look almost 3D. The camera is a digital colour CCD but since diatoms are colourless I switched the camera to black and white mode.
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| Page title: | Diatoms in a different light |
| Keywords: | Microscopy, Micscape, amateur microscopy, diatoms, algae dark-field illumination, darkfield, Heine phase contrast, Ibicui, Brazil |
| Description: | Diatoms in a diffrent light, phase contrast, dark field and Heine phase |
| IP-address: | 98.138.19.143 |