| 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
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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. |
| Author | Thread |
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12/13/2008 06:38:00 PM |
Thank you all for great comments!
Thanks to  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
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12/12/2008 08:58:47 PM |
| Great image and execution. Congrats! |
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 Photographer found comment helpful. |
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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! |
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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" :-) |
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Comments Made During the Challenge  |
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12/07/2008 09:54:02 PM |
| Did you use one of those laser toys? If so, cool effect. |
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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. |
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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! |
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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 |
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12/04/2008 11:59:00 AM |
RGB scanner perhaps? What speed are the galvos, power?
Nice picture |
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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 |
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12/03/2008 09:51:39 PM |
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12/03/2008 04:32:57 AM |
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| Photographer found comment helpful. |
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