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Defocus = Colours


Defocus = Colours
Photo Information
Copyright: Himanshu Ranade (Xplorer) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 125 W: 13 N: 327] (2187)
Genre: Animals
Medium: Color
Date Taken: 2012-09-02
Categories: Spiders
Camera: Canon Digital Rebel XT, Canon 75-300 1:4-5.6 III USM
Exposure: f/11, 1/160 seconds
More Photo Info: [view]
Photo Version: Original Version, Workshop
Date Submitted: 2013-04-05 6:08
Viewed: 1780
Points: 8
[Note Guidelines] Photographer's Note
This may sound strange and interesting, but this is a fact which has a scientific basis which will be clear once you compare this image which is slightly defocussed with the one in the WORKSHOP which is in perfect focus.

The two images have been taken within seconds of each other.

This is an mid morning image of a spiderweb with dewdrops. The relative angles between the spider web, sunlight and the camera/photographer enables one to see colour. Any small change in position of any one of the above and the colour is lost. The colours also change as the position of the sun changes. To add to my difficulty, the sun was playing hide and seek with the clouds and I was standing on 2 rocks.

To be fair I did not defocus the spiderweb on purpose, it just happened and which I noticed during processing.

As can be seen when the image is defocussed, the water drops appear vividly coloured, but when the same image is in better focus the colours are much less vivid.

This is due to a physical phenomenon called "Multiple Beam interference"

For those interested visit the following pages for more fascinating information and research on the above optical phenomenon.

http://www.itp.uni-hannover.de/~zawischa/ITP/multibeam.html

http://www.itp.uni-hannover.de/~zawischa/ITP/spiderweb.html
ramthakur, Miss_Piggy, waylim has marked this note useful
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Critiques [Translate]

That 'reality' is a relative entity is clearly proven by the set of 2 images you have posted today, Himanshu.
The scientific explanation for it may be beyond my comprehension, but I do grasp its essence.
From my perspective, the de-focused image gives me more pleasure than the focused one.
Doesn't that also establish the fact that 'reality' is as I like to see it?
Ram

Ciao Himanshu, lovely and original composition with beautiful effect of light on web, very well done, my friend, have a good week end, ciao Silvio

Hallo Himanshu
This is a splendid shot. Very artistic with lovely, shiny colours and lots of detail to explore in the imagination. Thanks for sharing. Best regards.
Anna

  • Great 
  • waylim Gold Star Critiquer/Gold Note Writer [C: 296 W: 8 N: 489] (1765)
  • [2013-04-11 10:05]

Hi Humanshu,

Beautiful shot of the water drops on the web, like string of beautiful pealrs. With this dark background and slightly blur effect, it also looks like star constellation on the sky.

Beautiful. I like both, the WS looks better in quality and focus, but the main one allow some imagination.

Way

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