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!