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I've been looking at some of the Foveon sensor specs and I've seen quoted a net Peak Quantum efficiency of 45%, i.e the overall result from adding all the colour channels together. So you can actually use the sensor as reasonably good monochrome camera...interesting.
I haven't seen much in the way of astrophotography done with the Foveon. Has anyone on the forum got a Sigma SD14?
Terry
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