I've been using the EF 50mm 1.4 USM on my 60D for a few days and I'm absolutely delighted with the performance, although I have to say that it takes some getting used to and practice to set the focus range the way you want it, depending on the aperture imagines. There really isn't a particularly large tolerance range. But if the focus is in the right place and all parameters are right, the results are absolutely outstanding. Even in difficult situations, the light intensity enables handheld shots with a very natural reproduction of the lighting mood. The release of motifs and the resulting bokeh always inspire me anew. The nice thing about fixed focal lengths in general is the fact that you have to position yourself according to your subject (you can't zoom after all) and thus give your creativity new freedom. And if a lens reproduces the chosen subject with such color fidelity and sharpness as the Canon 50mm 1.4 does, then you will be rewarded accordingly for your efforts. For me, the purchase of this lens is a clear enrichment and an incentive for my own creativity. Clear purchase recommendation!