Sony ILCA-77M2 - Manual (Page 60)

You cannot use the Smart Zoom function with movies.
When you use a zoom function other than the optical zoom, [Metering Mode] is fixed to [Multi].
When you use another zoom function than the optical zoom, [ Auto Obj. Framing] is not available.
To use another zoom function than the optical zoom for movies, assign [Zoom] to the desired button
using [Custom Key Settings].
[49] How to Use Using shooting functions Using the zoom
Zoom Setting
You can select the zoom setting of the product.
1. MENU
→
(Custom Settings
) → [Zoom Setting] → desired setting.
Menu item details
Optical zoom only (default setting):
Optical zoom is activated. You can use the Smart Zoom function if you set [
Image Size] to [M] or [S].
On:ClearImage Zoom:
Even if the zoom range of the optical zoom is exceeded, the product magnifies images within the range
in which image quality does not deteriorate significantly.
On:Digital Zoom:
When the zoom range of the [Clear Image Zoom] is exceeded, the product magnifies images to the
largest scale. However, the image quality will deteriorate.
Note
Set [Optical zoom only] if you want to magnify images within the range in which image quality does
not deteriorate.
[50] How to Use Using shooting functions Using the zoom
About zoom scale
The zoom scale that is used in combination with the zoom of the lens changes according to the selected
image size.
When [ Aspect Ratio] is [3:2]
[Zoom Setting] : [Optical zoom only (including smart zoom) ]
[
Image Size] : L -×, M 1.4×, S 2×
[Zoom Setting] : [On:ClearImage Zoom]
[
Image Size] : L 2×, M 2.8×, S 4Ч