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Sunrise ?

Sunrise ?
Photo Information
Copyright: Peter Roos (batu) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1079 W: 293 N: 4497] (16383)
Genre: Animals
Medium: Color
Date Taken: 2010-01-17
Categories: Single-celled
Camera: Olympus E1
Photo Version: Original Version, Workshop
Date Submitted: 2010-01-22 9:41
Viewed: 3790
Points: 16
[Note Guidelines] Photographer's Note
Sunrise? NO!

Examining water which I drained through soil particles, I found a number of these nice protozoans.
The species shown is
- Actinophrys sol
- family: Actinophoridae

Species information
The diameter is about 40 µm. This single-cell organisms moves rather slowly and looks rather friendly. However, it's a real 'carnivore'. Other organisms even of larger size stick to the axopodia and have hardly a chance to escape. Subsequently, they are slowly engulfed via pseudopodia.

I attached the Olympus E-1 via an adapter to my Olympus CH microscope which possess a photo tube.
- I had to use manual focusing
- automatic long time exposure + 2 steps

Streble H, Krauter D (1982) Das Leben im Wassertropfen. Mikroflora und Mikrofauna des Süßwassers. - Kosmos, Frankfurt.

jlinaresp, zulfu, matatur, roges, red45, Amelia, vasko1233 has marked this note useful
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ThreadThread Starter Messages Updated
To matatur: Colour correctionbatu 3 01-23 04:14
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Critiques [Translate]

Hello Peter,
Very interesting ... I do not remember seeing photomicrographs in TN before.
Thanks for the explanation (as done this) in the annexed note.

And you've the ID!... heavens!


  • Great 
  • zulfu Gold Star Critiquer [C: 685 W: 0 N: 2] (43)
  • [2010-01-22 9:56]

Hello Peter,
A wonderful microscopic capture of a well-known heliozoan in freshwaters. I know this from our Protozoology courses given by Prof. Göçmen. He is also well-known protozoologist indeed. Hence when i saw this image i remind him:)
Thank you very much for this unusual posting.

  • Great 
  • horias Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 837 W: 58 N: 2084] (11033)
  • [2010-01-22 10:42]

Dear Peter
What a interesting capture!
Yes,Its like a sun!\
Congratulation for this instructive post!

nice refreshing capture at TN, TFS Ori

Hi Peter,
You've succesfully captured a fine image of a beautiful heliozoan protozoon under a microscope, not an easy job for an amateur microscopist. The main fault usually stems from the choice of the mic. illumination. I tried to correct this in my WS, hope you will like it my riend.

  • Great 
  • roges Gold Star Critiquer/Gold Note Writer [C: 957 W: 0 N: 1329] (6264)
  • [2010-01-23 5:53]

Hi Peter,
A more unusual. Excellent details and colors with a very interesting way.
Beautiful framing and playing the main topic, congratulations.
Have a nice Saturday,

  • Great 
  • red45 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2636 W: 74 N: 9091] (31094)
  • [2010-01-23 8:45]

Hello Peter!

Fantastic post! I like pictures from microscope very much. This one really looks like very small sun. It is very hard to take good picture of so tiny creature, but you did it great!

Hello Peter,

I have just been browsing through a 'group' called single cells, and come across this protozoan. I have seen things like this using a microscope. My congratulations for managing to get a TE photo - with a perfect title!

Greetings, Amelia

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