A true performance accomplished by magicians Tamron, again, for a truly amazing price. As usual, excellent optics, autofocus suitable in bright light (and winded in low light), but above all, an incredible freedom given by the magnitude of this zoom capable of very respectable results over the entire zoom range! Of course, 6.3 to 250 it does not do everything, but if your sensor is sensitive enough, you have a lot of options, and without changing optics - Matters! This is the perfect target for holidays and long hikes and sunny - besides having had the opportunity to walk around a bit the subject, I can attest that it is resistant.
Note the guts to push to avoid inadvertent deployment of the zoom while walking, and the sunshade automatically provided. If you're new to photography and want to spare your wallet, or if you do not want to walk with 3 or 4 lenses on the back, this is probably the perfect choice!