Tamron SP 70-300mm Di VC USD

Started Dec 30, 2012 | Discussions thread
mtndew Senior Member • Posts: 1,341
Re: Tamron SP 70-300mm Di VC USD

I'm very happy with my Tamron. I went back and forth between the Canon 70-300mm non L and the Tamron. With all the research I did and reading of reviews I went with the Tamron. A couple of major qualities of the Tamron is the non rotating front lens - with a polorizar you don't need to worry about rotation. Also, I don't remember if the Canon is, but the Tamron has full time manual focus for fine tuning. If, when shooting through a busy scene, the camera locks onto the wrong subject, you can refocus without out flipping the manual focus switch. This would be big, lets say when shooting through or into a tree, trying to focus on a bird. The attached shot is at 300mm F11. I find I have to stop down at 300mm to at least F8 for a sharp shot. Other than at 300mm the lens is quite sharp wide open. I think it's very sharp at 70mm wide open at F3.5.

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