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Photo Information
Copyright: Agnieszka Trzaska (Grzegorka) Gold Star Critiquer [C: 69 W: 1 N: 0] (102)
Genre: Animals
Medium: Color
Date Taken: 2008-05-18
Categories: Insects
Camera: Nikon D70s, Sigma 70-300 mm f/4.0-f/5.6 DG APO MACRO
Photo Version: Original Version
Date Submitted: 2008-05-18 14:02
Viewed: 3434
Points: 4
[Note Guidelines] Photographer's Note [Polish]
The compound eye of insects is composed of units called ommatidia. An ommatidium contains a cluster of photoreceptor cells surrounded by support cells and pigment cells. The outer part of the ommatidium is overlaid with a transparent cornea. Each ommatidium is innervated by one axon and thus provides the brain with one picture element. The brain forms an image from these independent picture elements. The number of ommatidia in the eye depends upon the type of insect and ranges from just a handful in the primitive Archaeognatha and Thysanura to several hundred in larger Diptera.

http://en.wikipedia.org/wiki/Ommatidium


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Critiques [Translate]

Hola Agnieszka:
Me ha gustado mucho la información que has colocado sobre los ojos compuestos de los insectos.
No sé como funciona como MACRO el Sigma 70-300, pero parece que la profundidad de campo es mínima, posiblemente por el f que has usado.
Saludos
Jacobo

Witam

Całkiem fajnie Ci to wyszło, biorąc pod uwagę marne warunki oświetleniowe.
pozdr.
Maciej

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