Sorry dannik508, I don't have any knowledge of this lens, but 150-600 is a great range. Is it stabilized? If not, make sure you use a tripod or mono pod. I carry a collapsible mono-pod on the front of my case (you don't even notice it). At 600, even with the stabilization in my camera, the mono-pod does help.
Good luck! Looking forward to seeing the pictures.
John
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