I've been thinking about this lens for a while, then I convinced myself that the Pentax 50-135mm f2.8 DA was the lens for me, so I've been saving a bit more money.
I very much like the idea of the Tamron, the range is superb. But the Pentax is fast.
I have two main interests in photography, landscape which I can do with the 18 - 55 kit lens. Not the greatest but very good and it does me fine.
My other passion is off road trials and racing, and when I'm not competing I take pictures - like these today with the 18 -55 -
It's possible to get close to the action, and today I noticed that I used the 18MM end of my lens a lot, but I was also wishing I had more than the 55MM.
A lot of shots are panning and zooming as well.
Would the Tamron be a good choice?