Re: 35mm film VS digital

On Aug 28, 3:12 pm, fl...@xxxxxxxxxx (Floyd L. Davidson) wrote:
Scott W <biph...@xxxxxxxxxxx> wrote:
On Aug 28, 11:55 am, fl...@xxxxxxxxxx (Floyd L. Davidson) wrote:
that has been changed to 100,000 DPI.  It will still be exactly
the same image though...  and technically (with 4288 pixels
across on a 1.42" wide sensor) is about 3020 DPI, but of course
just as the film negative does not have that much resolution,
neither does the image recorded by the electronic sensor.

You'd have sounded a bit more authoritative if you'd have used the
correct term in the last paragraph, "PPI".

Who cares?  (Incidentally, PPI is not correct for the sensor either!)

Ok, I will bite, why not?  It seems to me the sensor is sampling
pixels, so
why would it not be in PPI.

The data from each sensor site does not uniquely determine a
"pixel" value, and more than it is what determines a "dot".
Each image pixel is made up from the combination of at least 9
sensors.
The way I look at it is there are sensor pixels and, color filter on
top of the sensor pixels and then output pixels. The point is the
camera does have pixels, even if you don't tend to view them directly.

Scott

.

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