Here's a common scenario: I'm shooting a stationary bird with a Sony A77M2 and 300mm lens. Eventually the bird takes flight. How should I configure and use the body's autofocus features to maximize my odds of getting sharp photos of the bird in flight?
The number of autofocus options and functions are overwhelming. (And I don't have enough opportunities to do good A/B tests of this scenario.) Among the autofocus options in the menus:
And, I think, the camera has some capacity to identify the subject (e.g., the bird) and AF-track it as it moves.
(I at least know to set the focus limiting ("AF range control") to keep the camera from trying to focus much closer than the bird will fly.)
The number of autofocus options and functions are overwhelming. (And I don't have enough opportunities to do good A/B tests of this scenario.) Among the autofocus options in the menus:
- Focus Area
- AF-A vs DMF
- AF drive speed
- AF Track Duration
- Center Lock-on AF
And, I think, the camera has some capacity to identify the subject (e.g., the bird) and AF-track it as it moves.
(I at least know to set the focus limiting ("AF range control") to keep the camera from trying to focus much closer than the bird will fly.)
