All of my lenses are just sharp enough. The sharpest of the bunch is my 305mm G-Claron, but the image quality it produces is somewhat different than the Symmars and Super-Angulons that make up my kit. I'm sure there are sharper lenses out there, and all of my lenses are now at least two generations old. So what? I find that error on my part is more detrimental to the sharpness of my images than anything that has to do with the lenses.