Hi, i need the lens for my digital camera (300 D canon) i want for fot press job?

Oh dear.

I cannot image a photojournalist not knowing what lenses to use. I would think that by the time you had enough experience to land such a job, you would know all this.

Ask your managing editor and see what they say

u can get it on ebay 4 cheap

Thumbs Up for fhotoace.