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Eyes have it


Eyes have it
Photo Information
Copyright: Subhrojyoti Banerjee (subhrojyoti) Silver Note Writer [C: 2 W: 0 N: 32] (194)
Genre: Animals
Medium: Color
Date Taken: 2009-03-23
Categories: Insects
Camera: Canon 40 D, Canon EF 100 mm F2.8 Macro USM, Sigma EX Multi-coated UV 58mm
Exposure: f/2.8, 1/100 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2009-03-31 8:55
Viewed: 2744
Points: 2
[Note Guidelines] Photographer's Note
I was in Silent Valley National Park to photograph the flagship species - Lion Tailed Macaque. However after much persuasion I was not allowed to enter the core area. So I decided to spend sometime in the buffer area. It was early morning and I was looking for macro subjects.

This moth was perched on a leaf and there was almost no direct/indirect sunlight. It was windy and I could not stop down for greater DOF. So I decided to bring in an abstract view out of this subject. Instead of using a large DOF I decided to use a shallow one to isolate only the head and partially the eyes. This made it look almost like a dragon looming towards oneself. Even at one point I was trying to figure out if this was a squirrels head if the proboscis weren’t present.
Most moth species are nocturnal and only few of them are actually crepuscular and diurnal. Moths frequently appear to circle artificial lights. One hypothesis advanced to explain this behavior is that moths use a technique of celestial navigation called transverse orientation. By maintaining a constant angular relationship to a bright celestial light, such as the Moon, they can fly in a straight line. Celestial objects are so far away, that even after travelling great distances, the change in angle between the moth and the light source is negligible; further, the moon will always be in the upper part of the visual field or on the horizon. When a moth encounters a much closer artificial light and uses it for navigation, the angle changes noticeably after only a short distance, in addition to being often below the horizon. The moth instinctively attempts to correct by turning toward the light, causing airborne moths to come plummeting downwards, and - at close range - which results in a spiral flight path that gets closer and closer to the light source.

Night-blooming flowers usually depend on moths (or bats) for pollination, and artificial lighting can draw moths away from the flowers, affecting the plant's ability to reproduce. A way to prevent this is to put a cloth or netting around the lamp. Another way is using a colored light bulb (preferably red). This will take the moth's attention away from the light while still providing light to see by.


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Critiques [Translate]

  • Great 
  • nagraj Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1618 W: 106 N: 3208] (15166)
  • [2009-03-31 23:36]

hi,
your viewpoint and limited depth is fine but one would like to see the species too that too from silent valley. tfs.
nagraj.v

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