DIY Strip Lights And Rim Lights
After reading David Hobby's post about rim lights, I decided that I wanna have a go myself.
In spite of David Advice, I went with strip lights. Made from an electrical racer. I did push them a bit more then on that post though.
Since I was not using a real "store bought" strip light I wanted to see how far I could push the light down the racer in a way that still produces good light through the diffusion screen. (Or actually, up the racer, since my flash was set on the bottom).
I placed the flash on the bottom of the racer and popped a few shots. I got nice blow out up to about 70cm. So that was the length of the strip light. From here the build starts.
Materials
- Corner Tie (this is not the specific one that I used, The one that I used has a cool slit in the middle that can be used for mounting it on a light stand - if you know where to get the ones with big holes, give a shout in the comments)
- Pop Rivets & rivets gun
- Electrical racer - I use a really big one (20x6x200) cut into 80-cm strips
- Diffusion material - I used transparent polypropilen sheet, but silk and tracing paper can be used as well.
- Rubber bands
- Foam tape
- Bungee cords
Build Steps
Step 1 - Measure & Cut
Measure 78cm of the electrical racer and mark it. Measure 80 cm of the racer and make a second mark. (this is where you'll place your corner tie later on).
Last, make another mark at 69cm. (This is where you'll drill holes for the bungee cord).
Now cut at the 80cm mark so you are left with a 80cm piece of racer.
Step 2 - Attaching The Corner Tie
Place the corner tie on the middle of the 78cm mark and mark the location of holes.
remove the tie and drill 4 holes where the marking are. Replace the tie and use the pop river gun to pop, pop, pop the tie into place.
Now place some foam tape over the rivets. This will accomplish two goals: 1. It will protect your flash from the rivet heads and 2. it will create friction for so the flash wont slide.
Step 3 - Attaching the Bungee Cord
drill two holes on the 69cm mark, about 2cm from the edge. The distance between the holes should be about as wide as your strobe.
Flip the racer on its back and thread a bungee cord through one of the holes. Thread the other hole and lock the bungee cord.
Step 4 - Attaching Diffusion Material
This is ,by far, the easiest part, wrap the sheet of whatever you're using over the racer and hold it down with two rubber bands - top and bottom. This is it, you're done.
Step 5 - Mounting
This is where lots of DIY modifiers fail. At the mounting step. Luckily the tie that I used has a big hole in the middle that sits right on the stud of my lightstand, with the aid of the female stud that came with the swivel.
Results
I was pretty much doing the same setup that David had in his post: grid for main, ringlight for fill (I wish I could tell you which ringlight but then I'll have to kill ya' all) and two strip lights at the back.
Here is the picture with strip light for rim (note the hair and shoulders)
And here is the same picture only with strip light off
The entire project took like one hour / $10 and was definitely worth the time and money invested.
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Comments
Will try - with grids.
I think I'll give this a shot since I'm holding out on buying more speedlight modifiers with the hopes of moving up to some Einstein strobes in the long run.
I'll also look at adding a grid - maybe cut down a fluorescent light egg crate cover?
under estimate!!!
i don't think you spend only $ 10.00 for the whole project!!! polypropylene sheets are expensive...
re: polypropylene sheets
Hi anon,
it all depends, here the sheets are carried in office and art store on a regular basis and it costs just like cardboard. This sheet (for two strips) was about $2.5 in local currency.
At any rate, you can always use tracing paper which is cheaper. and backing paper if you wanna go ever cheaper and can balance for the the slight color tint
Think you could get more
Think you could get more output if you lined the inside with mylar?
Raceway
Do you mind sharing the brand (and supplier) of the electrical raceway you bought? I've looked at some online and haven't seen anything quite as big or if it is large it tends to have extra channels and stuff. Yours looks nice and large and simple. It's possible some of the electrical dealers here carry what you used but their catalogs tend to be large lists of product numbers without much in the way of descriptions.
Thanks!
re: raceways
Hi Todd,
Mine was an "off brand" but those guys make the same parts: http://www.palgal.co.il/english/pvc_ducts_system.htm
Look in the pdf catalog on the left.
this is kinda of a first for me, usually the US has great supplies and I have tom import stuff (like PVC tees - would you believe we don't have PVC tees here!)
Anyhow, this is a local manufacturer, you'll have to match up with the US available stuff in lowes or HD.
re: raceways
Thanks! I'm in Canada and Home Depot here doesn't seem to carry anything appropriate, at least in the store when I wandered around for a bit yesterday. I have an idea to mock something up using some spare coroplast I have sitting around though. It does 90 degree bends pretty well if you follow the seams. I'm not sure it will stand up to heavy usage, but might be fun to try since it's free scrap I have already.
Nice job. You might get
Nice job. You might get another couple of efs by covering the inside of the racer with crinkled aluminum foil.
Where's the light?
A picture of where and how the flash is mounted would have been nice. :-)
Glenn
re: flash mounting
here, see this image from flickr (and the image on step #3)
Nice tutorial. Thanks
Nice tutorial. Thanks
alternative
For those having trouble finding the raceway, would a section of white PVC rain gutter material (found in any DIY store) work as well?
I have thought of doing this,
I have thought of doing this, but using the pre-made shop lights you can pick up at lowes and home depot for 10 dollars each.
They comes with the backer, plenty of mounting areas, they are amazingly strong and have a variety of ready made reflectors/diffusers that can be used, the diffuser that comes with it is a standard multi cone type that does a great job diffusing anything but direct light. So a strobe would be fine.
Cut it in half, bam, 20 bucks for 2 4 foot strip lights.
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