I have a Canon EOS 450D with the standard 18-55mm lens and I am feeling the need for a longer zoom lens - but really not sure exactly which model to buy.
The one I was looking as was this one "Canon 55-250mm EF-S f/4-5.6 IS Lens" but have heard that it is best to get a USM type, faster focussing? other advantages? - so I am wondering if I do get that lens, which fits my budget what will I lose by not getting a USM lens - or maybe a 70-300mm USM ?
The majority of my pictures are landscapes/still life/wild life etc - so maybe fast focussing is not something I really need.
Any advice and suggestions appreciated.
The one I was looking as was this one "Canon 55-250mm EF-S f/4-5.6 IS Lens" but have heard that it is best to get a USM type, faster focussing? other advantages? - so I am wondering if I do get that lens, which fits my budget what will I lose by not getting a USM lens - or maybe a 70-300mm USM ?
The majority of my pictures are landscapes/still life/wild life etc - so maybe fast focussing is not something I really need.
Any advice and suggestions appreciated.