I have been using the 28 1.8 on my 7D for a while as well and been fairly pleased with it. More because of its focal length and speed than the IQ it produces though. I just upgrade to the 5DIII and when I was trying out the cam in the store I had the chance to do that in combination with the 35L, and wow, what a difference! I first thought it was entirely because i was trying it on a better camera, so I tried it with my 7D instead and it's also a great combo! A huge improvement on the 28. Colours, contrast, sharpness, bokeh and build. You name it! think you would be very happy with it. It's my next purchase as well!