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Twisted geometry
Twisted geometry

Photograph Information Photographer's Comments
Challenge: Twisted (Basic Editing)
Camera: Canon EOS-D30
Lens: Sigma 17-35mm f/2.8-4.0 EX DG Aspherical HSM for Canon
Location: Kitchen table
Date: Dec 1, 2008
Aperture: 3.5
ISO: 100
Shutter: 57 s
Galleries: Abstract, Science and Technology
Date Uploaded: Dec 2, 2008

This is an oooold photography technique: you need a light source on a long string, close it in a light-tight container and punch a small hole in it, start the rotation and open the shutter. And of course you do it in complete darkness. I have a lamp on a long cable hanging from the ceiling, covered it with alu-foil and punched a small hole in the centre with a small pin. The camera was lying on the table, I pushed the lamp, opened the shutter for just under a minute, and during exposure I briefly covered the lens and pushed the lamp in another direction.
Edited in photoshop: cropped the sides, noise ninja to remove the noise of the old D30 chip, and some curves to enhance contrast - the most beneficial was to lift the red curve, it brought out the outer part of the spiral. Cloned out a few hot pixels, resized, saved in jpg.

Place: 19 out of 171
Avg (all users): 6.1241
Avg (commenters): 7.7143
Avg (participants): 6.0943
Avg (non-participants): 6.1429
Views since voting: 1429
Views during voting: 255
Votes: 137
Comments: 12
Favorites: 1 (view)

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12/13/2008 06:38:00 PM
Thank you all for great comments!
Thanks to ' . substr('//www.dpchallenge.com/images/user_icon/21.gif', strrpos('//www.dpchallenge.com/images/user_icon/21.gif', '/') + 1) . ' Ecce Signum for telling me the word for this type of photography - physiograms. Here is a site with the technique explained and some of the best examples I've ever seen:
Physiograms like no others
12/12/2008 08:58:47 PM
Great image and execution. Congrats!
  Photographer found comment helpful.
12/12/2008 05:44:12 PM
Really clever, and very nice result. Thanks for the explanation as well, I will have to try this one of these days. Congrats on the top 20!
  Photographer found comment helpful.
12/10/2008 02:42:31 PM
I'm so excited you did well on this. I learned so much from you. Thanks for the "private lesson" :-)
  Photographer found comment helpful.
 Comments Made During the Challenge
12/07/2008 09:54:02 PM
Did you use one of those laser toys? If so, cool effect.
  Photographer found comment helpful.
12/05/2008 09:42:37 PM
I've wanted to learn how to do this type of shot for awhile now. Since I'm jeolous, I have no joice but to score it on honest 10! It meets the challenge well and it's a great image overall. I hope this does well.
  Photographer found comment helpful.
12/05/2008 04:05:34 PM
One of the best physiograms I've seen here. Simple lines (sorry twists), clean and not too busy - well done!
  Photographer found comment helpful.
12/04/2008 09:01:15 PM
Gorgeous , well done crisp clean imaginative to the point of curves and twisting pleasure, excellent colour and forethought, 10
  Photographer found comment helpful.
12/04/2008 11:59:00 AM
RGB scanner perhaps? What speed are the galvos, power?

Nice picture
  Photographer found comment helpful.
12/04/2008 09:29:26 AM
I do believe I've seen these spirals in another challenge. They are much more appropriate here. 7
  Photographer found comment helpful.
12/03/2008 09:51:39 PM
What is this?
  Photographer found comment helpful.
12/03/2008 04:32:57 AM
  Photographer found comment helpful.

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