[www/js/jquery/plugins/fancybox]# vi jquery.fancybox.js
Change the settings from fitToView:!0 to fitToView:!1
http://www.prestashop.com/forums/topic/207959-update-fancybox-size-in-product-page/
[www/js/jquery/plugins/fancybox]# vi jquery.fancybox.js
Change the settings from fitToView:!0 to fitToView:!1
http://www.prestashop.com/forums/topic/207959-update-fancybox-size-in-product-page/