The panoramic sizes are only available from the public store, at least for now. There's two workarounds:
1) Lower the public price to your cost, place and complete your order, and then put the price back up.
2) Order on the next-largest size paper and request no cropping. For example, I have a 12x6, which I could order on 12x8 and then trim off the extra white. Or I might even stick two copies together, and then get a 12x12 and cut it in half. Nothing keeping you from ganging up more than one photo on a sheet. |