How do people rate the CANON EF 100-300 USM F4.5-5.6 Lense

[Prophet]

I've got the chance to get one of these for around £120-£150 depending on how it goes. Second hand but in very good condition. How would it rate to the Sigma 70-300 APO GG Macro etc in terms of picture quality etc? I also notice that its capable of full manual focus and the elements dont rotate when focusing?

Help aa noobie out please. I really need a nice telephoto lense and can't make my mind up!

Cheers,
OP

 

[Prophet]

Thanks for the post ranarama

If you can email me some of the full size pics I'd appreciate it (pm if thats OK)

There are so many to pick from its really starting to give me a headache!!!