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  1. a.dancy

    Sigma 300mm Prime Lens

    Simon if the reach of the 100-400 is just a little short for you then maybe you need a baghide...just a thought. I have a lot of experience with the Sigma 300 prime. At 600mm you will not have the quality of a bare Sigma prime and sometimes not the quality of a Canon equivelant at the 600 range...
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