There is sharpness, but not what others say. The picture quality is normal, focusing is fast, the lens is very good for its money, but it does not cost as much as any Sigma 135mm or Kenon or Nikon. I can’t say anything particularly bad for him, and I can’t say anything particularly good either. Did he satisfy me? Well, probably more yes than no. I switched from it to 85mm 1,4 Karl, it is much worse than 135. Examples of photos of Sony a99 and 135.