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Title: Not suitable for action photography
Review: I have to say I was very disappointed in this. I tried two of them. I really wanted this to work. I expected some drop off in image quality with my Sigma 70-200 f2.8 lens. But complete still shots, it does a suitable job. But for action, and I primarily shoot college football, it was a failure.I tried two copies and on both, over 80% of my shots were trashed upon first viewing. I had high hopes for this, but no luck!
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