The light detection system includes at least two light detection elements. Each
element is responsive to a selected light color in a first mode, and each element
has a different sensitivity and is responsive to a single color in a second mode
for enhanced dynamic range. A preferred embodiment includes four light detectors
for responding to four separate colors or for responding with enhanced dynamic
range to two colors. Embodiments are disclosed using a mirror/beam splitter arrangement
to switch between modes and an embodiment including dichroic filters serving as
fractional beam splitters.