What do you think is the best Telephoto for under $200. I have been looking and have seen the Tamron 55- 200, Tamron 70- 300, Canon 75- 300, and a few others. I was wondering which has the best imgage quality because it seems they all are about the same price. Speed, though i know it is important, I will be doing most shooting with this lens outdoors, so I have little need for something like a 2.8 (definitely don't have the funds for a beast lens). Thanks in anticipation of the help.