In the United States, consumers are able to purchase gel sheets from Lee Filters, Rosco, and Apollo. This article will focus on Lee Filters as this is the product line with which we are most familiar.

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Gel sheets are made from a few different types of materials. Standard gel sheets are made from a very thin polyester material. Gel filters are also available in dichroic and glass forms.

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If you would like to figure out which gel sheet would work best with a specific type of lamp or fixture, then you can consult the Lee Filters "mired shift calculator" at the following link: MIRED SHIFT CALCULATOR You will input the original source value and the converted source value, in kelvin, and the mired shift calculator will recommend the appropriate gel filter color.

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Are you looking to learn more about lighting gel sheets? This article is packed full of information about how to select a gel sheet color, how to attach a gel sheet, temperatures at which gel sheets will work, gel sheet dimensions, gel sheet functions, types of gel sheets, and popular gel sheet colors.

Lee Filters currently has about 250 different colors available in their product selection of gel sheets. There are a couple of different ways to look at the full offering of Lee Filters gel sheets:

Thanks for reading our primer on Lee Filters lighting gels.  If you should have any questions please email us at info@goknight.com or call us at 1-866-457-5937.

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The Lee Filters website has a great function, which is named "gel comparator", which allows you to plug in the name of any make of gel sheet and find the comparable Lee Filters color. You can find the gel comparator at the following link: GEL COMPARATOR

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Lee Filters has introduced an LED specific line of filters called the Zircon gels. Zircon gels are great for use with LED lighting applications. To see the full line of Zircon gels, you can go to the Zircon product section. The Zircon gels are a new concept in LED filter design with a lifespan of up to 200 times longer than standard lighting filters.  As per Lee Filters, Zircon is a new concept in LED filter design that has been designed from the ground-up for exceptional performance with LED Lights.

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Since color preference is personal, we can only use our sales data to suggest the most popular colors of gel sheets. The gel sheets purchased in the highest volumes from our store are as follows, divided into gel sheet categories:

Another method to view the full line of Lee Filters products is to order a Lee Filters swatchbook which has a small (roughly 2 inch by 1/2 inch) sample gel sheet for each gel.

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Lighting gel sheets are used primarily to change or filter the color of light. There are several categories of gel sheets, including color effect, color correction, diffusion, reflection, LED, and scrim. Gel sheets are typically used by theatre directors, technical directors, production managers, and stage crews to change the color of light in theatrical or stage productions Gels are also used for photography, television, film and movie production purposes. Gel sheets can also be used to block unwanted light, with the use of black foil, from a shoot.

What if I am trying to adjust for a certain type of lamp or fixture? What if I have an originating light source color temperature and want to adjust for a desired converted color temperature?

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What if I have a competitors gel sheet number? How do I locate the Lee Filters gel sheet number that is the came as a competitor's product?

The selection of a gel sheet color is a very personal process. Everyone sees colors in a slightly different way. It can sometimes be difficult to communicate exactly which color you are envisioning in your mind's eye. For instance, one person's definition of the color "plum" will not necessarily be the same as another person's. For these reasons, we would definitely recommend that you consult the Lee Filters website or download the Lee Filters app. It is also very useful to use a Lee Filters swatchbook to guide your product selection. Please also bear in mind that the picture images online of all gel filters are best viewed at a depth of 256 colors or more.

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The recommended method for attaching a gel sheet to a lighting fixture is to use a color frame or gel frame. The color frame/gel frame is attached to the light emitting end of the lighting fixture. The gel sheet is then placed in the color frame. Although these gel sheets are designed to withstand high temperatures, the manufacturer does not recommend putting a gel sheet directly against a light source.  If your fixture cannot use a color frame or gel frame, then you could try adhering the gel to the fixture with heat-resistant glue.

Standard lighting gel sheets are not fire-proof and the user must use the product carefully so as to avoid fire hazards when working with light fixtures. A gel sheet should never be placed directly on or in close proximity to a light source (i.e., lamp or bulb). The light source could cause the gel sheet to catch on fire. To attach a gel sheet safely to a lighting fixture, the user must attach the gel sheet to a gel color frame which is compatible with the lighting fixture in use.

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A standard polyester gel sheet should sustain temperature up to 180 degrees Celsius/356 degrees Fahrenheit. A high temperature gel sheet should sustain temperatures up to 280 degrees Celsius/536 degrees Fahrenheit. There is not any published information regarding the various wattage of sources and how they affect the filters. The best we can offer is the melting points/max temperature ranges for each type of gel. This is 356 Fahrenheit for the polyester gel (regular gel sheets) and 536 Fahrenheit for the polycarbonate (high temperature) gel sheets.

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The handy Lee Filters "Swatchball" has been replaced with the even higher-functioning "Lee Swatch Book App" which is available for iOS and Android. This app has the complete range of Lee Filters on one screen, with an innovative color picker so you can easily build and save palettes anytime inspiration strikes.

Yes, gels can be used outside.  Depending on how you attach it to the lighting fixture, you may get some shadowing or other indications of weather such as rain or snow being projected through the light and the gel.  You may also experience a faster deterioration of the gel sheet due to the weather conditions to which it is exposed.

Yes, a gel sheet is made of very thin material which can be cut easily with scissors or a box-cutter. The gel sheets can be cut down to whatever size dimensions you should need.

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