First of all, nice plugin! :)

My question is, if it would be possible to add the possibility to set a maximum size for the full image as well, just like as is possible for the thumbnails.

Now when a big image is used (as is default with most cameras) it exceeds the screen width, which makes a horizontal scrollbar appear, hide the 'prev' and 'next' on the sides and info/tip below the image, and in FF generates a neverending vertical scrolling bug. Then when you return to the site, you are actually below the site, with a large vertical scrollbar.  :o

Hope i explained it well.  ::)

Keep up the good work.  :-*