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Unread 08/09/2017, 09:04 PM   #444
jason2459
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Join Date: Jul 2009
Location: Iowa
Posts: 9,671
Still just so cool to see so much life thriving in death.

https://youtu.be/rPhIGWnZQR8?list=PL...F3UxzpNcFAKfeU


I tried going darkfield again on this cool flagellated critter and would have been good if it was bigger. I tried pushing my darkfield stop to 60x and just couldn't. With darkfield the NA value of the condenser has to be higher then the NA value of the lens. The NA value of my condensor is 1.25 BUT what they don't tell you is that is for OIL. For dry it's .9 and my 60x is .9. So, I could just get images but not very good ones. To be able to use an objective of the same NA value or higher you there are objectives with built in iris basically that will allow you to adjust that NA value down.
https://youtu.be/lsgHapb2DuQ?list=PL...F3UxzpNcFAKfeU


https://youtu.be/lTcLAxbg3v8?list=PL...F3UxzpNcFAKfeU


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Current Tank Info: 180g mixed reef w/ a beananimal overflow to a dolomite RRUGF. | 20g long G. Smithii Mantis Tank
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