Quote Originally Posted by Dave Throgmartin View Post
The OP is trying to get better pics without spending a large sum of $$$, as nice as the 70-300L is, it is a large amount of cash more than 70-300 IS or Tamron 70-300.
That's true. I just would not expect a significant improvement with the 70-300 non-L (Unfortunately the Canon EF 75-300mm f/4-5.6 III USM is not available in the image quality comparison tool). Bryan recommends the 70-200 f/4L as an upgrade http://www.the-digital-picture.com/R...ns-Review.aspx. Even with an extender, it will be better than the 75-300, so sedwards already had the right idea asking about this lens.

Quote Originally Posted by Dave Throgmartin View Post
Arnt's suggestion of the 55-250 is a lost cost way to get there, but 250 can still be kind of short...
To add to that point: I would not recommend replacing the current lens with the EF-S 55-250. Instead, I would stick it out until I have the funds available for one of the 70-200 options, maybe with an extender if more focal length is needed.

EF-S 55-250 is great if you don't have any tele zoom yet, and if you are not sure if you want or can spend the money for one of the better options (it was my gateway drug )