The sensor on the yacht seeks out CCDs (wish they would have expanded on how it works in the article). In a digital SLR the CCD is not exposed until the image is captured, otherwise it is covered by a mirror reflecting the scene being viewed into the viewfinder. Therefore the photographer is not viewing the scene through the camera since the mirror would have flipped out of the way of the CCD when the image is captured. However, the scanning laser could possibly be harmful. I would have thought any possible health effects would have been covered in the article.
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