Abstract: A camera which has an electrochromic neutral density filter. The neutral density filter is placed in the optical path of the camera. The filter changes the amount of light which may pass through it when a voltage is applied thereby regulating the amount of light which may enter the camera. By controlling the amount of light which passes through the electrochromic filter, the camera operator can control incoming light to maintain desired density (depth of field). In another embodiment, a color video camera has a color separator which separates the light into red, green and blue components. Electrochromic filters are placed between the color separator and red and blue light sensors of the camera to control the amount of light reaching the red and blue sensors. By controlling the amount of light which passes through the electrochromic filters, the camera operator can control incoming light to correct color.