two weeks ago I was looking for desmids in one of my favourite
sphagnum ponds. Surprisingly there was a lot of the very beautiful
heliozoon Acanthocystis turfacea. :-)
In this video some scenes illuminated by a darkfield condenser or
asymmetric Col with blue or gray backround.
http://youtu.be/Ghzmp9FiGKI
Some stills out of that video:
Zeiss Standard 18; Planapo 10/0.32; Plan-Neofluar 25/0,8; Planapo 25/0.65; Planapo 40/0.95; Ultrakondensor; Achr.-Apl. 1.4;
Kpl 20x/8; S-Kpl 10x/20; DSLR
Best wishes
Jens
