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Rainbow colors
May 2, 2021 00:30:38   #
Brian Hartnell Loc: Marinette WI
 
I was informed this might be a better location for my photo entry. I was experimenting with light reflection on a DVD coated surface as a way to create dynamic light patterns. This only requires a simple pocket flash light, black cloth for a background, clean DVD, some type of syringe to lay water droplets and children's soap bubble mix. Using a darkened room and table top surface, you will need a tripod to allow you to expose the scene for 4 plus second time exposures. Raising and lowering the height of the flashlight will change the color of the beam running across the coated surface and this beam will be visible so you will see it moving. Moving the flashlight around the circumference of the DVD over a time exposure will create a wash of color. As I experimented I often moved the light up and down and around the DVD to create all of this varied color you see. It just so happened my flashlight worked well at 4 seconds allowing me enough time to get the images you see. F/Stop used ranged from F10 to F18 and my ISO was 100 for cleanest noise free images. You will be required to do dust spotting in your Post Process software of choice as there will be dust and spots that need to be removed for a clean image. You can't get away from hair, dust, lint, extra bubbles, and anything else that often shows when your doing this kind of macro work. This is fun so give it a try.


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May 2, 2021 06:43:18   #
pixelmaven Loc: Reno, NV
 
Great experiment. I very much like this.

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May 2, 2021 08:07:01   #
Linda From Maine Loc: Yakima, Washington
 
Fascinating results. Thanks so much for posting!

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May 2, 2021 18:06:32   #
Cwilson341 Loc: Central Florida
 
Thank you for sharing this in this section. Your creations are beautiful and artistic. I really love them.

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May 3, 2021 05:39:45   #
tcthome Loc: NJ
 

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May 3, 2021 06:21:06   #
dpullum Loc: Tampa Florida
 
How can we say ... "hump, there is noting new to photograph"... you prove that wrong... great inspiration to all.

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May 3, 2021 06:48:50   #
UncleBuck Loc: Malvern, Arkansas
 
Brian Hartnell wrote:
I was informed this might be a better location for my photo entry. I was experimenting with light reflection on a DVD coated surface as a way to create dynamic light patterns. This only requires a simple pocket flash light, black cloth for a background, clean DVD, some type of syringe to lay water droplets and children's soap bubble mix. Using a darkened room and table top surface, you will need a tripod to allow you to expose the scene for 4 plus second time exposures. Raising and lowering the height of the flashlight will change the color of the beam running across the coated surface and this beam will be visible so you will see it moving. Moving the flashlight around the circumference of the DVD over a time exposure will create a wash of color. As I experimented I often moved the light up and down and around the DVD to create all of this varied color you see. It just so happened my flashlight worked well at 4 seconds allowing me enough time to get the images you see. F/Stop used ranged from F10 to F18 and my ISO was 100 for cleanest noise free images. You will be required to do dust spotting in your Post Process software of choice as there will be dust and spots that need to be removed for a clean image. You can't get away from hair, dust, lint, extra bubbles, and anything else that often shows when your doing this kind of macro work. This is fun so give it a try.
I was informed this might be a better location for... (show quote)


Excellent !!!

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May 3, 2021 11:24:48   #
NJFrank Loc: New Jersey
 
Good use for CD’s past their prime.

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May 3, 2021 12:35:26   #
JBRIII
 
Loved the water droplets. The CD acts as a diffraction grating, some home made spectrometers use pieces as gratings (cheap). If? different CDs had different grove densities might get different effects?
Very nice work;
James the 3rd

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May 3, 2021 13:48:22   #
NikonGal Loc: Central Oregon
 
Interesting idea and results. Thanks for the "how to". Bev

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May 3, 2021 13:59:55   #
captivecookie Loc: Washington state
 
I knew dvds were still good for something.

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May 3, 2021 15:36:09   #
kenievans Loc: Dallas
 
Very cool! I enjoy doing in studio work. This looks like it would be fun to try.

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