Introduction: DIY Photography Gels
Photography gels are precisely colored acetate sheets (overhead transparencies) used to alter the color of lights. There are different reasons for doing this, including for aesthetic effects and contrast reasons. Professional sets can cost a fortune, these cost me $14.25 (not including the transparencies, which I already had), and are great for any amateur photographer!
Step 1: Making Them
I went online and found the standard color values for a set of gels. Using these, I made an 8x10in jpg file for each color. Attached is a zipped file containing all 27 images that you can burn onto a CD.
Once this is done, take the CD and a pack of acetate sheets to Kinkos, or a similar printing venue. Kinkos only charged me $0.49 a print.
Easy as that.
Step 2: Using the Gels
- Store gels in a manila envelope to keep them from getting dusty or scratched.
- If you're shooting in black and white, a red gel will add more contrast to the picture.
- An interesting effect can be achieved by lighting different parts of a picture with different colors.
- Putting a gelled light between you subject and a white backdrop allows you to have whatever color background you want.
- Position the subject far from the backdrop if you want colored light on the subject, but not the background.

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36 Comments
7 years ago
Do you know where I might get files to print neutral gradient filters?
11 years ago on Introduction
Could you use these to project images for stage lighting? I am looking into using these for stage lighting at my church and was wondering I could use them like GOBOS
11 years ago on Introduction
Lighting gel used in theatre and film will run 5-6 US dollars depending on the supply house. The color media is 20in x 24in and more heat resistant than overhead transparencies.
www.bmisupply.com
12 years ago on Introduction
Out of curiousity, is the $.49 just for the printing in color, or does that include the pricing of the acetate sheets? I ask because when I went to Kinkos and asked about how much it cost to print transparencies (which I'm assuming is the acetate sheets) in color, the guy told me it was $1.99 per sheet.
Reply 12 years ago on Introduction
I brought my own transparencies, so it's just the printing.
Reply 12 years ago on Introduction
BTW, has anyone tried out the Fellowes Crystals clear plastic binding covers for their DIY Gels? I ask because everywhere I've gone to that has acetate sheets (transparencies for projectors) have ranged up into the $35+ range for the cost for 50 of them, and I found one store that has the Fellows Crystals Binding covers (basically the professional grade plastic covers that requires the machine to bind a stack of papers by using a plastic spine) for only $13.99 for a pack of 25. I'm asking because I don't know if they are good enough to withstand the printing process. The only cheap transparencies (other than the Fellows product) are for the ones you write on (and I don't know if those can stand the printing process at Kinkos.
Reply 12 years ago on Introduction
I would worry that something not designed for printing might melt inside a laser printer. Kinkos wouldn't be happy.
Reply 12 years ago on Introduction
Thanks for the input, but I decided to go with inkjet transparencies I picked up at a Goodwill for $5 (comes with 50 sheets).
Reply 12 years ago on Introduction
Thank you. I was wondering about that, so at least now I know the difference. :D
12 years ago on Introduction
Why are some of the colors appear different? Example the Blue N+1 appear like Magenta and the Green N+3 appear to be turquoise? Also where are the yellows?
13 years ago on Step 1
Why are the files named with and "N"? Just curious.
13 years ago on Introduction
Just want to ditto photoman22. The colored report covers are cheap. Stacke 'em up for intensity. Thanks for zip file, I'll give 'em a go. BTW, I tried the request for the free swatch book from Roscoe but they were overwhelmed once it was mentioned on the Strobist blog. B&H has the best price
13 years ago on Introduction
COOL, I needed them for night vision stuff
15 years ago on Introduction
Awesome. Now I just need to learn how to use them...
Reply 14 years ago on Introduction
learn it all here!
http://strobist.blogspot.com/2006/03/lighting-101.html
just make sure that you have lots of time on your hands, that site eats into your sleep time :D
14 years ago on Step 1
Sweet! Great idea! Have they melted at all under the heat of the modeling lights?
Reply 14 years ago on Step 1
I mostly use them on my speedlights, so they haven't spent too much time in front of a modeling light. The transparencies are used commonly on overhead projectors, though, so I'm sure they'd hold up pretty well.
14 years ago on Introduction
Instead of buying gels, I went to Office Depot and bought a package of colored acetate report covers. I cut the covers in half and have two sets of "gels" that work great.
Reply 14 years ago on Introduction
That's a great idea!
14 years ago on Introduction
You can buy a gel sample pack from Roscolux for about $2. Here is the B&H link:
http://www.bhphotovideo.com/c/product/45189-REG/Rosco_950SBLUX0103_Roscolux_Swatchbook.html