I bought this lens to combine it with my Canon 100 mm macro lens and Kenko extension tubes. In this way I can get a magnification of ca. 3:1, instead of the 1:1 with the macro lens alone. I'm positively surprised at the quality of the pictures, and I would like to recommend this lens to everyone.
Using it to digitize old photos. This lens allows me to do that with my 18-55 kit lens and the results are great. For me the lighting is the main problem, but with this lens I can get close enough to take advantage of the whole sensor and don’t loose any resolution due to cropping.