Sony ILCE-1 a1 Help Manual page 123

Examples of the focusing frame display
The focusing frame differs as follows.
When focusing on a larger area
When focusing on a smaller area
When [ Focus Area] is set to [Wide] or [Zone], the focusing frame may switch between "When focusing on a
larger area" and "When focusing on a smaller area" depending on the subject or situation.
When you attach an A-mount lens with a Mount Adaptor (LA-EA3 or LA-EA5) (sold separately), the focusing frame
for "When focusing on a smaller area" may be displayed.
When focus is achieved automatically based on the whole range of the monitor
When you use a zoom function other than the optical zoom, the [
frame is shown by the dotted line. The AF operates with priority on and around the center area.
To move the focus area
You can move the focus area by operating the multi-selector when [
parameters:
[Zone]
[Spot: S]/[Spot: M]/[Spot: L]
[Expand Spot]
[Tracking: Zone]
[Tracking: Spot S]/[Tracking: Spot M]/[Tracking: Spot L]
[Tracking: Expand Spot]
Focus Area] setting is disabled and the focusing
Focus Area] is set to the following
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