There are numerous programs out there that can zoom an image online. Most of them are unsafe for selling stock photography. AJAX-ZOOM (http://www.ajax-zoom.com) is a plugin that can be integrated into any photo store running with PHP. It watermarks each zoomed portion of an image and does not require images and image tiles to be loaded into clients browser or be accessed over http in general.

Would such a plugin be usefull for your site? If yes please tell which software solution for your photo store do you use.

For any other opinions thanx in advance...