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The (Really HUGE) Kimel Bouncer

Jan 8, 2009 by Udi Tirosh Add Comment

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The (Really HUGE) Kimel BouncerOK, we have done bouncers and diffusers before. We had a nice paper/foamy version of the LumiQuest and a nice paper version of the Stofen. So what’s the big deal about this one? 

Firstly, it comes to you from  Martin Kimeldorf, the guy who converted his lightstand to backdrop mount.

Secondly it is the HUGEST bouncer I’ve ever seen. Excluding the ceiling bounce, of course.

I lost my lumiquest pocket bounce, dang! Being of DIY persuasion I decided to investigate the designs others had come up with…and there were plenty. I wanted to combine the 45 degree angle of the lumiquest with the dish shape found in other DIY bouncers. I researched, cut, glued and tried several versions before coming up with the following design. In the process I found that a hot glue gun does magic when attaching foam to foam and Velcro to foam. I have tried it both 12 inches and 10 inches tall and found them so similar that I ended up sticking with the smaller version because it felt more mobile. The diagram shown next gives you both height versions.

The Kimel Bouncer

The image below shows the 12 inch high model strapped to a flash. In later refinements I replaced red Velcro with white Velcro. Here the red shows up nicely for the photo.

The Kimel Bouncer

Profile view of the 12 inch prototype. Later, I added material with the diffusion level of parchment paper in front of the diffuser to create a softer light. It hangs from the top and Velcros to the bottom to stay in place.

The Kimel Bouncer

Materials

  • 12 x 18 inch Magic Foam, white and black. I purchased mine from JoAnn Fabrics and Crafts. I got the extra thick black and the regular thin white foam sheet (About $1.50 each). It has a national distribution store locator at Joann’s Store locator.
  • Cordless glue gun and glue.
  • Velcro, white or black color.
  • Sharp knife blade cutter (like box knife).
  • A diffusing material, fabric or wax paper or parchment paper.
  • Black gorilla tape or similar duct tape type product (optional).

Steps

1) Glue a piece of 12 x 18 white on top of same sized black foam. Just add enough glue to keep the two pieces together while you cut it out in the next step.

2) Draw an outline of the shape as shown in the initial drawing. Choose between the larger 12 inch high verses the 10 inch high size. To draw the arc across the top, pin a string at once end and loop it around your marker as shown next.

The (Really HUGE) Kimel Bouncer

3) After cutting out the shape, run hot glue bead along all the seams that appear unglued. If you have not worked with hot glue guns before, you may want to practice on smaller pieces first.

4) When done, hot glue in the Velcro front and back. Here is a detail showing the Velcro being placed on the front (white side) and lined up on the back (black) side.

The Kimel Bouncer

5) I like to run a cut line all the way across along the B Middle Cut. This way I can fold it in about half and store in a large zip lock bag. The folded up version is shown next.

The (Really HUGE) Kimel Bouncer

6) I then like to run tape along the sides, across the cut line on the back side to give it a finished look and protect the edges at the same time.

The (Really HUGE) Kimel Bouncer

7) I found that if I added a diffuser material to the front, I get a cross between a bouncer and umbrella effect. Just cut out a piece of diffuser material that is about 2 inches wider and taller than the bounce. Then find appropriate places to Velcro the diffuser in place. My sample is shown next.

Diffuser cut out and taped, Velcro added. This is the back side of the diffuser.

The (Really HUGE) Kimel Bouncer

Diffuser mounted on Kimel Bounce, flashing its soul towards you.

The (Really HUGE) Kimel Bouncer

Sample shots follow…

Direct flash on-camera

The (Really HUGE) Kimel Bouncer

Using Kimel Bouncer showing softer shadows on background.

The (Really HUGE) Kimel Bouncer

Adding a diffuser to the bouncer softens the shadows further a bit.

The (Really HUGE) Kimel Bouncer

Moving the flash off camera, left, with the Kimel Bouncer.

The (Really HUGE) Kimel Bouncer

Adding a diffuser material further softens the shadows even more

The (Really HUGE) Kimel Bouncer

Comparison to using an umbrella where shadows are softest yet. When you can’t use an umbrella, this bouncer + diffuser might be a good compromise.

The (Really HUGE) Kimel Bouncer

Bio info

Martin Kimeldorf is a retired teacher and writer. His initial attempts at “strobing the universe with DIY items appear here, and his larger attempts at pixel play can be found on Flickr here. He lives with his wife and dog and Olympus E-3 camera in Tumwater, WA, USA.

 

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Filed Under: DIY, Tutorials Tagged With: bounce, diffusion, flash

Udi Tirosh: from diyphotography.net

About Udi Tirosh

Udi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

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Udi Tirosh: from diyphotography.netUdi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

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