8x12 is the true 2:3 image ratio (full image). It is available in Wal-Mart as a size that can be selected in the photo lab computer, by a photo lab employee, for an image originally ordered as a 4x6 image order.
On the 8x12, the original image capture can be presented in its full form (no crop), or can be cropped in its original 2:3 dimension and used as an 8x12.
The 8 inch rolls of photo paper are available in different lengths, but 8x12 frames are not found as commonly as something like the 8x10, which to me is not useful. That is why I use custom made frames that accomodate 8x12 or 12x18 prints in double mattes, not losing any of the original image if needed.
---------- Post added 08-02-16 at 12:14 AM ----------
Originally posted by Mary Lippold Hey all of you, thanks so much. Good ideas. I haven't given up on my printer yet, but I do also like my Epson 3880. I think two copies on the 13x19 paper might be my first try, then try the larger canvas, and then I'll go to Costco or Walmart if I can't get it right. I'm still in early days of trying to print my own, and I do like both my printers, so I want to keep trying a bit longer. But I've also heard from many others who have lab prints done instead. It certainly would have saved my two days of raving frustration. THANK YOU!
Mary
You're welcome. Good luck with your situation. I hope everything works out alright.