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File:Sea Urchin (39745638943).jpg

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Detail of the shell (test) of a small regular sea urchin. The test consists of calcium carbonate and carries the sockets of the spines.

Mitutoyo M-Plan Apo 5x microscope lens. The long edge of the image is actually only about 7 mm long.

Focus stack with 100 steps made with the electronically controlled focusing rack Novoflex Castel Micro. Software: HeliconFocus Pro with Method C.


Here is an album with my attempts with the same equipment:

<a href="https://www.flickr.com/gp/bernd_thaller/219Bpd">www.flickr.com/gp/bernd_thaller/219Bpd</a>
Date
Source Sea Urchin
Author Bernd Thaller from Graz, Austria

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by Bernd Thaller at https://flickr.com/photos/44296132@N06/39745638943. It was reviewed on 31 August 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

31 August 2020

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current09:39, 31 August 2020Thumbnail for version as of 09:39, 31 August 20207,000 × 4,649 (13.74 MB)RTG (talk | contribs)Transferred from Flickr via #flickr2commons

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