(What a coincidence )
Would like to add some more pics of radiolarian shells, these are 25x and 40x magnification, experimenting with DIC. The black and white image was done with oil immersion and green light, desaturated after.
All active and non active forum members, as well as visitors best wishes for 2019!
Some more radiolarian shells > Pics added_Best Wishes
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Some more radiolarian shells > Pics added_Best Wishes
Last edited by WalterD on Mon Jan 14, 2019 10:18 am, edited 2 times in total.
- Robert Berdan
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Beautiful images
Very nice - Radiolarians are especially beautiful.
- carlos.uruguay
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Thanks for your kind words.
In addition to previous pictures i wanted to try reflected light, my Ultropak setup was used to accomplish this. Because radiolaria are small, I worked with the 42x/0.60 objective.
Different illumination was tested: the original halogen 100 Watt light, a Canon Speedlite and a white high power led with diffusor. The last one, positioned in the original Leitz lamphouse in the position where the halogen lamp used to be, seemed to be the best option. All and all reflected light on radiolarian shells gives a better insight in the 3-dimensional structure of these silica frames. It also shows different details compared with transmitted light I used previous sessions.
Thanks for looking!
In addition to previous pictures i wanted to try reflected light, my Ultropak setup was used to accomplish this. Because radiolaria are small, I worked with the 42x/0.60 objective.
Different illumination was tested: the original halogen 100 Watt light, a Canon Speedlite and a white high power led with diffusor. The last one, positioned in the original Leitz lamphouse in the position where the halogen lamp used to be, seemed to be the best option. All and all reflected light on radiolarian shells gives a better insight in the 3-dimensional structure of these silica frames. It also shows different details compared with transmitted light I used previous sessions.
Thanks for looking!
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