InFocus2014 Offline Upload & Sell: On
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I purchased the Sony 70-300mm when it was first released, some years ago. I was never very impressed with this lens and sold it within six months. The contrast and colors were not great. The sharpness was fair to good. Over the years, a number of photographers, on this forum, expressed similar findings. Having said that, I'm sure there a lot of photographers out there that are very happy with this lens.
From all I have read, and despite the fact that the new 70-200mm f4 II does not have the biting sharpness of the GM 70-200mm f2.8 II, it is still pretty darned sharp and focusing speed will be light-years better than the old 70-300mm. Contrast will also be much higher. Of course, there are other metrics such as coma, flare, CA's, LoCA's, etc. to consider, where I expect the newer lens to be better.
If you are dead-set on 70-300mm, the Tamron lens might be a consideration.
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