Grey Teal
Grey Teal by
RobGeraghty, on Flickr
---------- Post added 24-06-17 at 08:23 PM ----------
I did manage to get the DFA 150-450 to hunt. Or rather, I think it was the camera. With a badly backlit subject and lots of branches, the camera just lost the plot. I had to use quick-shift to get it in the ball-park. This isn't a complaint - frankly it's to be expected in the circumstances. So the photo below is to demonstrate the difficult situation that cause the camera to hunt, not to show off a good photo.
Hunting by
RobGeraghty, on Flickr
In decent lighting conditions (actually even in poor light but not backlit), the ability of the K3+DFA 150-450 to achieve a lock was impressive. I even got a BIF, one which wouldn't have been possible with the DA*300, and a number of other shots which were possible because of the quick focus of the DFA lens.
Actually, with a bigger subject but very backlit, the lens still managed (and I managed to keep it steady somehow).
Crimson Rosella by
RobGeraghty, on Flickr