I create some custom sized prints that cannot be cropped (or the desired effect is lost) for example I have one print that is 12x36 (maintaining this 1:3 ratio would also work). Is it possible to get this ratio printed through Zenfolio?

Kevin

Similar to the above request, I would like my customers to be able to order 12x12 prints.  I know that Mpix offers this size, but it's not available through zenfolio.  Thanks!