Hi mlino...


You may want to take a look at the Sigma 50-500 and it's capabilities over here. BHP has it for 1599.99, sorry not sure of your budget constraints.The non-OS model may be plenty cheaper but may also be hard to find.


However, at that price I would stick with the Canon 100-400 even though I don't fancy the push-pull design -I guess it comes down to both budget and convenience if you don't mind dealing with Sigma's QC issues.