I just got a 1.4TC. Had I known that the IQ would be this good with a TC, I would have got this a while ago. I have just taken 30 minutes of test shots at lunch today, but plan to try more this weekend. I more or less wanted to verify that it was a good copy. these are at 420mm.
IMAGE LINK: http://www.flickr.com …s/stonemaster/8170742835/
I made them BW because the subject matter was boring, but With the TC it is still nice and sharp. I am so happy. The AF definitely hunted some on a few shots, so that remains to be seen with Ai Servo and surfing, but from 30 minutes today, I feel like I can get great IQ with the TC.