Hi all,
When playing with "schiefe beleuchtung" it is worthwile to try different condenser height positions to see what the effect is. Below two pictures of P angulatum. The first one at lower than "optimal" position (more than 5 mm from slide) :
(https://www.mikroskopie-forum.de/pictures002/43038_50943206.jpg)
The second one at high position (about 1-2 mm from slide):
(https://www.mikroskopie-forum.de/pictures002/43038_10742899.jpg)
I like the first one best. Images taken with objective 40/0.65 and oblique illumination by swinging out the filter holder. Best regards,
Rolf