Archived posting to the Leica Users Group, 2009/12/04
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]There's an interesting thread on fredmiranda.com that discusses the tradeoffs between sensor color accuracy and low-noise high-ISO performance: http://www.fredmiranda.com/forum/topic/836083 there's a lot to wade through but it seems that better color accuracy comes to a large degree from sharp frequency cut-off in the sensor's color filter array (CFA) which limits bleeding of one wavelength into a photosite intended for another wavelength; a sensor with a weaker CFA / more color bleed requires less amplification so high-ISO noise is less. If this is true it could help explain the DMR's relatively poor high-ISO noise performance along with its excellent no-fuss colors. Comments and additional technical insight are welcome. Doug Herr Birdman of Sacramento http://www.wildlightphoto.com