In the low budget range nothing beats the Sigma 70-300 APO DG for the money. The Tokina is quite soft at the long end, needs to be stopped down to f/11. And 400mm at f/11 is kinda hard to handhold except for really sunny days.
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EOS 5D|EOS 600|15-30|24 1.4 L|135 2 L|2x 580EX|2x CP-E3|ST-E2|2x Pocket Wizzard Plus II|IXUS 850IS|Crumpler|Manfrotto|
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