Using Mitchell's 300 F4 this weekend was a new enough experience, add the 1.4 TC and things really got interesting. Can you guys take a look at this full size image and tell me where I screwed up? I am guessing this is mainly camera shake due to the increased lens length and the smallest movement on my part being noticable. Is that all there is wrong or could it be a combination of camera shake and incorrect settings. I just checked and this shot was 420mm, 1/100th @ f/6.7 I think I just answered my own question, but still would like love to hear your feedback. bad, bad photographer Thanks alot!