I currently own a 28-135, which I do like. However, it's a bit long on the wide end at times. Was thinking of replacing it with a Sigma or Tamron superzoom.
I know of the limitations of the superzooms at the extreme ends - i.e. barrel distortion at the wide end and softness at the far end. However, what I'm wondering is the comparison in the 28-135 range? I'm thinking if they are solid performers in that range, they might be a suitable replacement for the 28-135 with the added bonus of having wider and longer capabilities, albeit perhaps compromised.
Anyone ever compare them and have some thoughts? Just for more information, what I'm looking for in this lens is a general vacation lens when I don't want to take a full kit. When I'm out shooting "for real," I'll bring the 17-50 and 70-200 to cover that range.
Thanks for the thoughts.