On 6/14/07 7:57 AM, "Bob Geoghegan" <[EMAIL PROTECTED]> wrote:
> I know people out there have will opinions &/or informed speculation about > this: > > http://www.dpreview.com/news/0706/07061401kodakhighsens.asp > > The short version is that by replacing 1/2 of the sensor elements of a bayer > pattern with panchromatic elements, Kodak claims a 1-2 stop boost in > sensitivity: Not exactly a new idea. The retina in human eyes uses a somewhat similar scheme. Cone cells are selectively tuned to red, green, and blue light. The brain integrates the outputs of cones to produce our sensations of color. Rod cells are optimized for low light levels (sensitive to a single quantum) and their outputs provide luminance information. Mother Nature has been in this business a lot longer than Kodak. The analogy between retina and the new Kodak sensor is not perfect. The relative concentrations of rods and cones varies across the retina. And if I remember right, rods are not truly panchromatic. -- Julian Vrieslander <[EMAIL PROTECTED]> ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body
