An apparatus combining a telescope as well as the digital camera lucida, used for producing illustrations or photos of distant objects on the display screen. Niépce died in 1833 and Daguerre then redirected the experiments toward The sunshine-sensitive silver halides, which Niépce had deserted many years before thanks to his http://photoportraitfr03467.blog2learn.com/20925315/5-essential-elements-for-photography