Sony ILCE-1 Help Manual page 284

Help Guide
Interchangeable Lens Digital Camera
ILCE-1
α1
Zoom Speed (still image/movie)
Sets the zoom speed when using the custom key to which [Zoom Operation (T)] / [Zoom Operation (W)] is assigned.
This can be set separately for shooting standby and movie recording.
MENU → (Shooting) → [Zoom] → [
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Menu item details
Fixed Speed :
Sets the zoom speed during shooting standby. (1 (Slow) to 8 (Fast))
Fixed Speed :
Sets the zoom speed during movie recording. (1 (Slow) to 8 (Fast))
Hint
If a high speed is set for [Fixed Speed
quickly during shooting standby and slowly during movie recording.
The [ Zoom Speed] setting is also applied when performing zoom operations from MENU →
Zoom].
Note
The zoom speed does not change when you operate the zoom ring of the lens or the zoom lever of the power zoom lens.
If you increase the zoom speed, the sound of zoom operations may be recorded.
Related Topic
Clear Image Zoom/Digital Zoom (Zoom)
Zoom Speed] → desired setting item.
] and a slow speed is set for [Fixed Speed
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], the angle of view can be changed
(Shooting) → [Zoom] → [