Jack Davis <[EMAIL PROTECTED]> wrote:

>Didn't I see  something in a photo magazine about the
>fact that an APS sensor would contain more tightly
>packed pixels than would a 24x36? 

For sensors of the same pixel count. "More tightly packed" is another
way of saying "smaller", and therefore noisier, pixels.

>Thus, according to the writer, assuming the same pixel count, 
>the smaller sensor would capture and reveal more detail.
>Why do I doubt the assumption?

Because, although it may theoretically capture more detail per unit
area, the sensor is smaller and the image will therefore require more
magnification for a print of the same size as one made with a larger
sensor, therefore losing resolution in the final image. And, as the
image is magnified for the final image, so will be noise, which is
already higher with smaller sensor pixels.

It's remarkably similar to film: The less magnification you have to do
to your capture when making the final print, the better off you are.
 
  
 
-- 
Mark Roberts
Photography and writing
www.robertstech.com

Reply via email to