Couple of lenses for new cameras

Need your opinions guys on two problems as the wife and I are getting a couple of 2nd hand cameras.

I take action/birding shots, so getting a 1DIIn - reckon a 100-400 (as has to be a zoom) or maybe a Sigma 100-300F4. Would you agree ??

The bigger problem is that the wife is getting a 350D - is there a better lens for the money than a Canon 55-250. Would love a Tamron 28-75 but costs much more.

I can get a 350d and 55-250 for £300 UK.....can I get a better lens for this amount (any make). Would consider anything between the 18-135 or 28-75 or 70-200 etc etc for this camera.

???

id get a 70-200 so you could use it on any camera

Thought about that myself, but I need at least 300 and i'm the enthusiastic one

The wife just wants a cheap/light set up - she just wonders if 55-250 is her best option for the money.

55-250 is going to the best bang for your buck that you'll find. It is an excellent lens for the money. IQ is great and it has IS. My wife uses it on the XSi and loves it.

You also can't go wrong with the 100-400. I love mine. I think these two lenses will make you very happy.

But a 70-200 on a crop is the equivalent of 300mm

EmmaRose wrote in post #10476778
But a 70-200 on a crop is the equivalent of 300mm

Ummm..No.
200mm is 200mm no matter what body it is on

philwillmedia wrote in post #10477116
Ummm..No.
200mm is 200mm no matter what body it is on

Equivalent to 320 mm on a full frame, to be accurate.

philwillmedia wrote in post #10477116
Ummm..No.
200mm is 200mm no matter what body it is on

You guys may be saying the same thing but saying it in different ways but it definitely does matter what body it is mounted on. A 200mm lens on a 1.6 crop sensor is the equivilent of a 320mm lens.

More info on that here
http://www.wildlife-pictures-online.com/canon-crop-factor.html

The focal length DOES NOT CHANGE.
The field of view changes.
In simple terms, it is the same as taking an image on a full frame body and cropping that image.
The photo is still taken at 200mm, but is the equvalent field of view as 320mm. The 200 does not suddenly become 320.

Rest assured, a 70-200 does not magically become a 112-320 lens on a 1.6 crop body

There are umpteen threads on POTN discussing it and explaining it probably better than I have here.
Also read up on it at http://en.wikipedia.or​g/wiki/Crop_factor

philwillmedia wrote in post #10477116
Ummm..No.
200mm is 200mm no matter what body it is on

"EQUIVALENT OF"
I never said 200mm = 300mm