文档介绍：DSLR AstrophotograpHy…. My wayMy cameraWhy Canon??Provides RAW files?Not directly useable as an image?“Digital negatives”… unprocessed readout of pixels?Well suited for dark subtracting and flat fielding… not true of Nikon?Canon uses CMOS (complementary metal oxide semiconductor) sensor?Less sensitive D, but cheaper to make?Generally consumes less power Ds?Provides excellent colorCreating a color digital image One shot color (Bayer Matrix)orials/camera- sensors convert photons to electrons which can be measured Bryce Bayer (1929-2012)http://image-sensors-world./2012/11/bruce-bayer- color is createdDebayering the matrix… greyscale data converted to RGB imageEach pixel contributes to the luminance image which gives detailorials/camera- after demosaIcingIrreversible processes best done on puter and not in the cameraorials/raw-file- reasons to use Canon?Software readily available?Acquisition (Images Plus, Backyard EOS, Neb