If I am just doing corrections maybe 5-10 minutes but if I am altering the photo can take up to and hour and maybe more. All depends on what I plan on doing with the image, when I decide to print I can spend up to half an hour going over the entire photo looking for things I think will impact the finished print. The last print I did I spent almost two hours tweaking minor things so the finished print would be what I wanted the outcome to be. SO many variations and really nothing firm in time lines anyone can really give.