Lou, a 70-300 will be fine. To many folks think the 2.8 lenses are the only option but it just isnt true. Yes, the prime zooms are better quality and can produce better images, but it still takes knowledge of how to use the camera to maximize the lens.
I rarely shoot at 2.8, even with $5000 lenses. Most 2.8 lenses arent even at their sharpest at 2.8.
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