I use the cartridges already more than 2 years with my Pixma iP4850 and prints a lot of photos with it. The colors correspond to my estimation of the original cartridges and the durability (when printing on Canon Original Paper) is equal. Cartridges contain 11% more color than the originals. I can recommend the full cartridges! The saved money (more than 50% compared to the originals) I invest in the paper, as this stands or falls a good printing result.