Originally posted by steve1307 Although I've never owned any you listed I think the general consenses is they all are worse than the Pentax(Tamron) 18-250. I tried my father-in-laws Tam 18-270 (on his Canon) and found that it wasnt as good as my Pentax18-250 i had. The zoom creep was worse. (I dont like zoom creep) All the others are older designs I believe.
I'm finding you might be right! Almost all the other ones got terrible reviews.
My DA 18-250 was normal quality, not a dud copy... like I said, I gave it a 8/10. I was just frustrated with it, cuz it was never sharp, never full featured, and just as good (without totally pixel peeping) as a bridge camera mega-zoom. I just never said "wow!"
As I research, it seems there is no ultimate all-in-one lens, and that Pentax/Tamron version may actually be the best.
I'm leaning towards getting a high-end 2012 BRIDGE camera instead.