1)i like to buy 70-200mm f/ 4l is usm lens,is it gud enough or will sugest sum other lens for the same price category? 2)how to find the orginal canon lens? becoz here lot of shops provide various price ranges for the lens which i mentioned. Thanks 4 ur suggestions in advance.

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fish eye (: i dont know much about lends and cameras, but i LOVE fisheye lends

The 70-200 lens is pretty decent. Personally, I carry the 16-35 and 24-70 f/2.8 for travel photography. I have also heard good things about the 24-105 f/4.

I give you and the other person here a thumbs down for the lack of use of proper English and spelling. This isn't phone chat and we have more than 160 characters... . Just get a 18~200 from anyone who makes one to fit your camera. 18mm to 50, wide angle.. 50mm to 200 telephoto.. All in 1 lens. . Easy. . 70~200 and you will need a 2nd lens (NOT lends.. geeeeze) like a 18~55 or so. Why carry 2 lenses..?

@Camera guy-it looks as if English may be a second language for the OP, but I'm not sure. As far as a lens, it really depends on where you're going and what you'll be doing. If you will mostly do scenic shots, landscapes, cityscapes, then I recommend a wide angle lens like a 10-22mm or 12-24mm. It will make for much more dynamic shots. But if you will be doing mostly street style photography, cafes, people, markets, then something like a 35mm or 50mm might be more appropriate. Or, if you will be shooting a lot of wildlife, then you are going to want at least a 200mm focal length, so perhaps the 70-200. But it might still leave you wanting a little more reach.