I have the 35mm f/2 and it is an ok lens for the 7D. It was beautiful on the XSi I had, but think the 7D and it don't agree very well. I have always been underwhelmed by it. Maybe that's just me. I would rather use my 2.8 zooms since it is only a stop better and really doesn't get super sharp until it is in the zoom range anyway. Now when I get the 35mm L or if canon comes out with something for APS-C, I am going to be one happy customer. I love the focal length on my cropper.