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Who hides under the shield?


Who hides under the shield?
Photo Information
Copyright: Dmitry Gavryushin (Osmeterium) Silver Star Critiquer/Gold Note Writer [C: 10 W: 0 N: 158] (517)
Genre: Animals
Medium: Color
Date Taken: 2006-04-06
Categories: Insects
Camera: Nikon D70S, AF Nikkor 28-80mm 1:3.5-5.6 D (reversed)
Exposure: f/16, 1/125 seconds
Details: (Fill) Flash: Yes
Photo Version: Original Version
Date Submitted: 2006-04-06 2:56
Viewed: 3162
Points: 10
[Note Guidelines] Photographer's Note
Cassida viridis (Chrysomelidae, Cassidinae).

I patiently waited until this tortoise beetle raised its nice green shield a bit and displayed its head, antennae, and legs. There was a documentary on Animal Planet explaining the technique these creatures use to have a very firm grip on surface thus remaining virtually impenetrable to most predators. It's basically special structures on their tarsi.

pat, pitai, Luc, firelord has marked this note useful
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ThreadThread Starter Messages Updated
To loot: Many thanks for your commentOsmeterium 2 04-06 07:37
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Critiques [Translate]

  • Great 
  • loot Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5524 W: 722 N: 4163] (11276)
  • [2006-04-06 3:50]
  • [2] [+]

Hello Dmitry
Pleased to meet you. By now you must surely know how rewarding or unforgiving this macro photography can be. Rewarding and joy when we managed to get it right or unforgiving and disappointment when the results are less than satisfying.
You have a nice macro with an interesting subject here, but even at f/16 the DOF were so unforgiving. The couple of millimetres it presented you were a little short of providing good details through the area that probably matters and that you wanted in focus. The antennae are soft and then again the bulk of the body is soft. The only way you could have improved on this was to reduce the aperture even more down to f/20-22 perhaps, but that would have taken a major dent in the shutter speed. Fortunately with a frozen subject such as this beetle you could actually go down to possibly 1/60 of a second.
The composition is very nice and so is the POV (point of view). The colours together with the exposure could do with a little less brightness and some increase in saturation. I am sure you will see a major difference in the photo just by doing these PP (post processing) enhancements.
Very good effort and TFS (thanks for sharing). Keep at it and I am looking forward to see your next upload.
Regards
Loot

  • Great 
  • pat Gold Star Critiquer/Gold Note Writer [C: 87 W: 0 N: 125] (414)
  • [2006-04-07 17:33]
  • [2]

Hi Dmitry,
Here you show us a really unusual and interesting point of view of the Cassid Beetle! Mostly, when drawn in entomological books they are depicted as seen from above, and the beetles seem to have no head at all, so much they are "shielded" by their large pronotum. In your wonderful picture its little cute head sticks out nicely, and the insect seems to do physical effort to perform those "push ups". The Nikon D70, on standard mode gives low contrast. In macrophoto one preferentially chooses higher contrast in the camera options or one can do some USM filtering in Photoshop. The large sticky feet are interesting too. Thanks for showing, Patrick

Hi Dmitry, how are you?
Great closeup . Many thanks for help me about ID...
Congratulations

  • Great 
  • pitai Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 193 W: 15 N: 155] (1212)
  • [2006-04-08 9:19]
  • [2]

Hello Dimitry, incredible insect. I have never seen one in real life. I like the point of view. The low angle does help us appreciate where the head pops up. But, the DOF was not the best. Still a fine shot. TFS. Gabriel

Look like un Hemiptera but it is a beetle. Good POV and TFS. After read the Loot´s critique I learned what POV and TFS means.
Thanks por partilhar seu conhecimento.
Jandira

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