Thanks bakica. I´m thinking about 18-135 and 17-85. 1mm difference is not bad for architectural photography but there are 4 years difference between this two lenses. So even 17-85 has USM, i´m thinking about quality difference between this two lenses in same focal lenght.And 18-135 has 3.5aperture and i know it better for low light situations.
Thanks jwnrw. Your comment make me think about the body. You are right. But you know, for a better body i can pay 300€ more. I wont feel regret. Articulated display for me important. And i can check picture quality better in Lcd display before i go to my home and take a look at my pc. I m sure that, with a lower body and better lens i can take better photos at the beginning. But i can learn very fast. if i like something. Because of that, i m sure, with alot of practice, i will manage to take good photos.
I m sure, i will buy my self at least one ultra wide lens and an ultra long lens (after i see moon photos of the members here
) but maybe take some time. But at the beginning i dont want to walk with 3-4lenses.
I think, i ´ll buy 60d and for lens,
1mm focal difference + USM against, +0,5 aperture and +2,5zoom.
But i don´t know whether image quality of this two lenses are same or not.