Here is a link that you could show to your friends www.juzaphoto.com/article.php.


A referance for the people that don't click on the link.


Down rezing your images softens it because of interpolation (reducing or enlarging an image). To get around that you just sharpen the downrezed image, best to do this in Tiff and save in Jpeg afterwards. At 600/800 pix the image is very small and the pixels are large on your monitor so you cannot see anything close to 100%, even moderate amounts of motion blur or a very soft lens would look perfectly sharp at web size. Of course the larger you print or display on your monitor the more obvious lens softness/motion blur/difraction becomes.


Hopefully that helps,


John.