After using it and then going back to my other lenses, it is not going to be my walkaround lens when I want the best IQ or when I can bring multiple lenses. I will still use it when I want the range in a single quite portable lens package, i.e. touristing in NYC/travel lens during the daytime or with good light. I cannot compare to the much cheaper 18-270 version or any superzoom, as this is my first and only intended lens of this nature.
As for more testing stuff. On my 50d, I could not get it to autofocus with a kenko 1.4 TC. 12mm,20mm, and 12+20mm extension tubes worked. The 36mm did not. Took the B+W MRC CP fairly well, but did not have the best sky at the time.
My issue with the decentering during VC is much less with this copy, probably copy variation.
So basically the only two reasons I am keeping it is the zoom range and size of lens.







the few test that I did be for I went were quite good using Lightroom lens correction tool. Have just spent two days using it a zoo so I will see how it does when I get home.
