Sigma 50-500mm F4.5-6.3 APO DG OS HSM
If anyone is interested, here is a pretty good read, and some videos, about the Sigma 50-500mm F4.5-6.3 APO DG OS HSM.
EDIT: I should have mine tomorrow. It will be interesting to see how it performs on the Pentax K-5.
Ron - 'We don't have time to go take pics this afternoon Carl.'
Carl - 'What do you mean? It will only take 1/1000s.'
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