Thanks for the nice comments everyone!
@Coen: I can give you some technical details, maybe that helps. I hope that I do not mix up the right specifications in english...
Technical equipment (it's not cheap but I am using it for business-activities as well...so maybe I am a lucky one):
- Canon EOS 400D DSLR
- Canon Speedlite 580 EXII
- lens: EFS 60 mm f/2.8 USM
- additional background-light from a desk lamp
Settings:
- manual Settings and manual focus, free hand (you are way faster this way)
- ISO 100, max. 200 to avoid any unnecessary noise
- relatively small aperture (meaning a high number) between 11 and 22 to have a good depth of field (I personally like it better this way) - this needs much light, especially on a short distance, therefore the flashgun
- a relatively high shutter speed of about 1/20 to 1/80 seconds since the larvae are moving fast
You see, there is not one setting but I played around a little bit. If you are interested, I can send you the settings for the single photographs; I think they are not displayed in the photosection since I shoot my photographs in RAW mode and later save them with photoshop.
I use to photograph my animals in a small glass-tank since that has less contortion than an acrylic one. Additionally I installed a dark background.
The rest is kneeling on the ground, bending your back, swaying back and forth - a lot of patience, endurance and quite some luck to hit the button at the right moment.
With this settings I can shoot things down to the size of daphnia ar artemia (the later with a higher ISO because I needed a high shutter speed in very short distance, you can see the noise):