Keep or Sell 24-105 f4 for 24-70 f4

technic wrote:

remains to be seen how useful the lens is for 'macro'. My 15-85IS can do closeups too, but the quality is so bad IMHO (field curvature, very soft corners etc.) that I never use it. And 70mm is not a very convenient macro fl on such a system, I guess it is mostly useful for tabletop shots etc. (assuming the image quality is good enough) where one can control lighting, and less so for outside 'walkaround' macro shots.