megapixels or zoom lense? Which is best for wildlife,landscapes?

David J Taylor wrote:
Under some limited circumstances digital zoom can actually improve
the
quality because:

- the focussing and exposure may be more accurate

- the JPEG compression will have less effect on the lower resolution
image. This can apply when you use, for example, a 2:1 zoom and the
central e.g. 1024 x 768 pixels of the image are interpolated to 2048
x
1536 pixels before being JPEG compressed.

Fair enough.

I always shoot RAW, so I've never dealt with JPEG compression. I find
that QImage does a pretty spectacular job of up-ressing in those cases.


Interesting to learn about the above.

Regards,
Vandit