When ordering digital photo prints on the internet, it's important to be careful about the resolution of the image files, especially with enlargments, posters and canvas prints. Old cameras often produce low-resolution pictures resulting in grainy, pixelated prints.

This table shows what minimum resolution is recommended:

	Print size
Camera Resolution	5x3.5	6x4	7x5	8x6	12x8	16x12	24x16
< 1 MP	+	+	-	-	-	-	-
1 MP	+	+	+	-	-	-	-
2 MP	++	+	+	+	+	-	-
3 MP	++	++	++	++	+	+	-
4 MP	++	++	++	++	++	++	+
5 MP	++	++	++	++	++	++	++

- not recommended; + possible; ++ good quality

Generally, processing of prints and poster prints is possible in any size, however quality is suffering very quickly. Many printing services indicate before orderin, if the resolution of the uploaded image file is sufficient for the selected print size.