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Fun With Light Painting


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#1 TknoGeek

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Posted 31 December 2017 - 09:26 AM

I decided to fend off cabin fever by setting up a small scene for light painting.

Tabor_20171224_161352-Edit-X2.jpg

Tabor_20171224_162105-X2.jpg


Recipe:
a. 1 black Plexiglas sheet (12 inches x 24 inches)
b. 1 crystal pyramid (4 inches)
c. 1 wood dowel (48 inches x 1 inch)
d. 1 LED light strip (cut to size - 48 inches)
e. 1 level surface (e.g., table top)
f. 1 tripod
g. 1 Nikon D850
h. Assorted wire ties


1. Cut LED light strip [d] to fit wood dowel [c]. Dowel may be substituted by any convenient straight edge with a surface for mounting the light strip.
2. Attach LED light strip [d] to wood dowel [c]. It helps if the light strip has self-adhesive backing.
3. Install batteries in LED battery box.
4. Attach battery box to dowel using wire ties
5. Test lights to ensure proper function. Bonus if light strip has settings for different colors and flash sequences.
6. Place clean Plexiglas sheet [a] on level surface [e]. Plexiglas must be clean. Any dust or scratches will be evident in the final product, so time spent cleaning the sheet at this stage will save time in post-processing. Handle Plexiglas via the edges or use cotton gloves to prevent fingerprints.
7. Position Plexiglas sheet [a] so that the edge of the sheet extends past the edge of the level surface [e].
8. Place clean crystal pyramid [b] on Plexiglas sheet [a]. Pyramid may be substituted by other shapes (e.g., prism or sphere). Crystal must be clean. Any fingerprints or dust will be evident in the final product, so time spent cleaning the crystal at this stage will save time in post-processing. Use of cotton gloves recommended.
8. Install Nikon D850 [g] on tripod [f]. Nikon D850 may be substituted by any camera EXCEPT Canon products which tests have shown to be technologically inferior and not fit for purpose.
9. Position tripod [f] and D850 [g] so that the D850 is angled to capture desired position of crystal pyramid [b], and balance of Plexiglas sheet [a] and background.
10. Set D850 [g] exposure so that:
.... a] The shutter speed is several seconds (at least 5sec recommended; 10sec is better); and
.... b] The frame is black using ambient light. A windowless room is ideal for this purpose.
11. Turn on the LED light strip [d] to desired light color and pattern and keep LED light strip well outside the camera frame.
12. Trigger the camera shutter.
13. Move the LED light strip [d] across the frame in desired speed and pattern of motion.
14. Review image to observe effects of speed and pattern of motion.
15. Re-compose frame, if desired.
16. Repeat Steps 12-15 until:
.... a] Boredom is completely relieved; or
.... b] Batteries are exhausted. In this case, you may desire to simply replace the batteries and continue with Steps 12-15.


__________

Enjoy! :)


--
John

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#2 MarkM

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Posted 31 December 2017 - 10:00 AM

Wow, John! Fantastic project and cool images...very creative. Do you wave the light strip (Step 13) behind the table top plexiglass, a bit higher than the table top plexiglass, with camera in front of plexiglass to pick up both the light strip and its reflection? I trust boredom was relieved!

#3 TknoGeek

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Posted 31 December 2017 - 02:59 PM

Thanks, Mark. The light strip extends from above the top of the frame to below the edge of the Plexiglas.

... and boredom has been staved off for the moment. :)
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#4 Roderick

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Posted 02 January 2018 - 07:46 AM

Beautiful results and a great tutorial :)

Thanks, John


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#5 John W

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Posted 02 January 2018 - 08:00 AM

Really interesting. TFS


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#6 David Pavlich

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Posted 02 January 2018 - 10:14 AM

Just too cool.  Nicely done!!

 

David


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