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Digital BW, The Print

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RE: [Digital BW] Shooting Digitally

2002-01-17 by Austin Franklin

> ALMOST good enough?!!! People are printing spectacular 13x19 images from
> this camera AND the Canon D-30!

Well, I take issue what that.  The D-30 gives you 2160 x 1440.  That means
you are printing at 113 PPI to the printer (on the long side).  Now, you CAN
interpolate the file and get a bigger file (and hence more PPI to the
printer)...that has NO more detail, but is still sharp...as I've said,
sharpness isn't the issue, it's detail.  Yep, it'll look "good", but
compared to the same shot with film, it just won't hold up.

Another thing to realize, is these one shot digital cameras use four sensor
elements to get the color information...so the array contains 25% red
sensors, 25% blue sensors and 50% green sensors (two for contrast
enhancement)...so you REALLY don't get N megaPIXELS of color information
from the sensor, but substantially less (arguably 25%)...and the color
information is interpolated to give you the N megapixels from the camera.

In my opinion it is very misleading for the vendors to claim they have an N
megaPIXEL sensor...when the sensor isn't giving you "real" color pixels,
since a color pixel consists of all three color values (R, G and B), and
after all, these ARE color cameras!

Austin

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