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Originally Posted by acmerchant

Thanks Cosmicma and Wave01 but I think I will go for Canon EF 70-300mm f/4-5.6 IS USM Lens

In reviews I have read that lens has come out worst on image quality than the 55-250mm IS, I had the canon 70-300 and never liked the images it produced they seemed soft and lacked definition but then I may of had a poor sample, I changed to a Tamron SP AF 70-300 F/4-5.6 Di VC USD and found it to be much sharper and has better IS than the Canon!