jeff_loughlin1

<p>FWIW, I did an experiment a while back with a 2x teleconverter vs cropping in post. In my test shots, when I cropped the non-TC image so the two images had the same field of view, the cropped image was sharper and had better contrast. This was on a D700 with the 70-200 2.8 VR (on a tripod, VR off) and a Kenko 2x teleconverter. Your camera has a lot more pixels than my D700, so your results from cropping would be better than mine. I've never used the Nikon TC, so I don't know if they're better or worse than my Kenko (probably better). I'd guess the results with your camera and a 1.4x TC would be similar, but you'd have to do the test yourself to find out.</p>

<p>Since I did this test, my 2x teleconverter has been sitting unused in my bag.</p>

<p>I had a Tamron lens that did this on both the focus and zoom grips. I called Tamron and they sent me a new set of rubber grips, free of charge. I was very happy.</p>

<p>Then the same thing happened to one of my Nikon lenses. I called Nikon, expecting similar results (or at least an option to pay a few dollars for a new set of grips). Nope. "We don't sell parts for our lenses, but if you send it in to our service center, we'll be happy to replace the grip for you. For $125. Plus shipping and insurance."</p>

<p>So my Tamron lens looks brand new, and my Nikon lens looks like it's been through a war.</p>