I spent some time shooting the yard birds from inside the house with the window open and the rig attached to to a Manfrotto Tripod. Best results occur when you use manual-assisted autofocus. That is, manually focus the lens until the subject is almost in focus, then use the camera to lock autofocus. At 10-20 fps its easy to get sharp images. On a Jobu Jr. tripod head the camera swivels easily in all directions for following birds moving through the yard.
|fledgling House Sparrow|