Archived posting to the Leica Users Group, 2008/05/03
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I think Kyle started a thread recently about HDR. Maybe Panasonic was listening. http://www.news.com/8301-13580_3-9864843-39.html http://tinyurl.com/32sh23 >From the article... "With today's sensors, "You can get either highlight or shadow detail, depending on the exposure time. To get much wider dynamic range images, we need to combine these different-exposure images," Yamada said. Yamada showed a 177x144 pixel image sensor that takes three photos of the same scene in rapid succession. In one example, he said, the first exposure lasts 1.5 microseconds, the second 150 microseconds, and the third 15,000 microseconds (not far from a 1/60 second exposure). Extra circuitry built into the sensor records the data from the multiple exposures and uses an assortment of electronic capacitors to combine it into a single image that spans a greater dynamic range. The image can span a dynamic range of 140 decibels compared with ordinary sensors with a 60dB range when working at a frame rate of 15 frames per second, the researchers said." Sam Kennard