I just cannot find the way to let the original image displayed in full size.
I use thickbox layer to display the full large picture but it always be cropped to a smaller size.
Type the url of the picture in a new window I got the full un-cropped image. So
Could anyone tell me how to config it or show I modify any css file?

Thanks in advance

Change the theme file to use: http://www.zenphoto.org/documentation/functions/_template-functions.php.html#functiongetFullImageURL