I have a photo taken using my G1 camera at fine resolution & large size. After cropping, the file is approx 1750 pixel (W) by 1780 pixels (H). According to PS, the document size is approx 9" by 9" at 180 pixel/inch. The file size (jpg) is about 1.8 Mb. Can someone tell me what would be the optimum printing size for this photo? Or what is the appropriate maximum print size? Thanks.