- Post score: 11
- #26
Just read your question again. The TC 1.4E II is not compatible with the 200~500, it must be the TC 1.4E III ..and yes, it does struggle with the focus, I only use it for when the bird is on a perch, it is difficult to shoot any action for this reason. I do often times use f8 to focus and then switch to f9 once I have acquired focus. Also, I often times will use the manual focus ring to acquire focus and then use the back button once I have the bird clearly in the view finder. Hope this helps.How do you find the 1.4II tc with the 200-500? Guess aperture will be F8 but I gave this combo a try on my D500 and found AF struggled at times to lock on and focus. Any tips?