PanoTools NG:
Re: Canon 5D MKII
Erik Krause 2012-Mar-17 20:20:27
Am 17.03.2012 18:11, schrieb Paul Fretheim:
> Surely there is also interpolation in film scanners. In many ways a
> digital camera is just a differently organized scanner which scans the
> real world instead of film.
No. This is wrong in several ways.
- A decent film scanner uses three strip sensors, one for each color
channel, no Bayer pattern. RGB samples are taken from the same location
one after the other. No interpolation necessary, you get true RGB pixels.
- A digital camera doesn't scan the real world, it exposes all sensor
cells in one go. At least at shutter speeds below 1/250s (at higher
speeds the shutter opens only part of the sensor).
--
Erik Krause
http://www.erik-krause.de
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