I can't give you an informed answer on that, but ask your question at the site in the URL below and you'll have an answer in 10 minutes.

Here is a link that might be useful: DPReview Printers Forum

Mine print out the same. The difference, if any, on a small print such as a 4 X 6, is that the 5 mega pixel will be more finely detailed, and the 1 mega pixel will be grainier. It is more noticeable on enlargements.

In other words, putting 5 megapixels in the same space as 1 megapixels will give a more detailed picture.

Kt

Most digital cameras use a 4:3 aspect ratio, the same as a computer monitor. Most film cameras use a 3:2 aspect ratio, the same as a 35mm camera. A printer program will crop the picture for you, but not always the way you will want it. Instead, I crop and resize to the dimensions that I will print. As a result--no more lost heads, etc.

If you still have questions, post a question under the right Discussion Forum at the link below.

Hope you find a comprehensive answer.

Bill

Here is a link that might be useful: Photo.net