Gel Help

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"Seeing red or feeling blue about Lighting Gels?"

 

They're known as color gels, color filters, lighting gels or simply, gels. But whatever you call them, color gels are thin sheets of polycarbonate or polyester that project color when placed in front of lighting fixtures or windows. Color gels are used to color stage lighting as well as to provide color correction. Gels are easy to cut and easy to work with... and they're found in virtually every area of stage and screen production - including theatre, event production, photography, videography and cinematography.

Please Note:
The life of color filters depends on many variables: the color, the instrument and lamp used, the level and duration that the light source is running, etc. For these reasons it is impossible to assign a "life" for each filter. However some basics knowledge and experience can help with estimates. Dark green and dark blue filters usually burn out the fastest because they absorb the most infrared energy. Absorbing the extra infrared energy causes the plastic to reach it's melting temperature faster.

To prolong the life of a color filter, align your ellipsoidal lamp to a flat field focus. (Get rid of the hot spot.) You can increase the distance between the lamp and the filter by using a top hat or barn door. In extreme cases, try adding a heat shield to prolong the life of your filters.

Never use a plastic filter directly in front of an open faced lamp. This will nearly always cause premature failure because the heat is trapped and it has nowhere to go except to the plastic filter. Always allow a suitable air gap.

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