If you are asking if there is any difference between a 4MP image taken with the camera vs a 2MP image taken with> so would there be any difference between recording at 4mp on the
> camera (2.1mp camera) or enlarging the picture in photoshop?
the camera, but enlarged to 4MP in Photoshop, the answer is... YES, there is a significant difference.
If there wasn't any difference, everybody would buy 2MP cameras and enlarge in PS.
The 4MP image from the camera has 4 MP of REAL image information.
The 4 MP image created in PS has only 2 MP of REAL image information from the camera and 2 MP of INTERPOLATED
(intelligent guesswork) image information
It would be very close.> If I did use the 4mp on the camera and re-sized to 2.1mp would this be
> of the same quality as if I had just used the 2.1mp setting in the
> first place?
If you send a 4 MP image to PS , it will resample the image to 2 MP with its own interpolation algorithm.
A 4 MP camera takes EVERY picture as a 4 MP image.
The Camera can then resample the image to 2 MP using its own interpolation algorithm
Chances are the interpolation algorithms used by the camera and PS are fairly comparable, so the images will be
> "MDJ" <markstroasdfghnge.org.uk> wrote in message news:<55a0550d89110deb28d6a3099116e5d8free.terane ws.com>...> > I'm surpirsed no-one has told you but I will, hope I'm not too late.
> > If your camera is a 2.1 MP then record the images at 2.1 MP. The 4MP is just
> > the camera resizing the image and no additional information is recorded.
> > If you have the option, but sure and save to the highest quality jpg and not
> > tiff.