Re: zoom vs reolution
- From: "Jürgen Exner" <jurgenex@xxxxxxxxxxx>
- Date: Wed, 31 Oct 2007 18:14:23 GMT
tim fm ct wrote:
is: can I accomplish zooming by croping and enlarging seeing that the
resolution is quite a bit higher?
That would be the same as what marketing departments advertise as "digital
zoom", suggesting that anything digital would be better than analog. In
reality cropping can better be classified by substituting the "o" with an
"a".
There simply in no substitute for optical zoom. No algorithm can fill in
that information that was not captured when taking the photo.
Besides, if you are comparing the 8.1MP and the 12.1MP then the resolution
isn't that much different anyway. Simplified the first one is 2x4 million
pixels, the other 3x4. Not much difference to me.
Oh, and it seems you may be confused about the zoom factor, too. 6x or 12x
or whatever is the total range from wide angle to tele. If the first camera
has let's say (made-up numbers!) 20-120mm and the second 10-120mm but you
never use the extreme wide angle because you are into bird photography, then
there is really no appreciable difference between those two zooms for your
application.
jue
.
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