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A common use of EL Panels is for flat field correction among Astrophotographers. EL Panels are a thin, evenly illuminated flexible lighting panel that also works great to help calibrate your subframes prior to stacking and processing them into a final image. A flat frame is helpful (although not required) to be taken prior to processing to take out the noise captured by city lights, and environmental factors, and in order to capture the best flat frame, an even, mild illuminated lighting device is required. Enter, EL Panels. They are great to add to the Astrophotographers bag because they are light weight, set up in an instance, and are battery operated. EL Panels will provide an evenly distributed light source to help provide the illumination which will help capture your flat frames quickly and easily. We recommend choosing an EL Panel that is slightly larger than your aperture of your telescope so it will fill up the entire frame. Because panels are relatively flexible, it is recommended to tape the panel onto a more rigid backing like foam core board for best results.