Nice spring Sunday morning down here and I took my 400 mm lens with a doubler down to the ponds by Valley River Center. I found an article on-line about making auto-focus work with the above combination and was anxious to give it a try in the wild – not just my back porch. As I walked down the path to get started I was just struck by how beautiful the trees along the bank were – bursting with life and new growth. This shot was with the 400 mm lens without the doubler and it will auto-focus.
Now on to the test. I found an egret and a nesting goose who served as test subjects. My experience with this technique is that the lens will auto-focus with the doubler if you are in Live-View. It is not fast to focus but it will get there and lock on for a clear shot as you can see below. One could never pan a moving or flying bird but for what I needed this morning it worked well.
Kirsten has asked me for some more bird shots and while two is not many – it adds to the list.