I have a 50, 80, and 150 for my Hasselblad kit, and they work fine for my work. I have all CF lenses because I despise the older lenses' method of interlocking the shutter and aperture controls together. I don't think they're really any easier to focus than the older C lenses, as the CF lenses also have a rather narrow focusing ring that is awkward to use, though they do turn a bit more smoothly.