About Zoom Scale - Sony a9 II Help Manual

3
When a lens other than a power zoom lens is mounted, select
MENU 
Press the center of the control wheel to exit.
• You can also assign the [Zoom] function to the desired button by
selecting MENU 
[ Custom Key].

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)
ClearImage Zoom
Digital Zoom
(Camera Settings 2)  [Zoom]  desired value.
(Camera Settings 2)  [
JPEG Image Size
L
M
S
L
M
S
L
M
S
Custom Key] or
Full-frame/APS-C Zoom scale
— —
Full-frame Approx. 1.5×
APS-C Approx. 1.3×
Full-frame Approx. 2×
APS-C Approx. 2×
Full-frame Approx. 2×
APS-C Approx. 2×
Full-frame Approx. 3×
APS-C
Approx. 2.6×
Full-frame
Approx. 4×
APS-C
Approx. 4×
Full-frame
Approx. 4×
APS-C Approx. 4×
Full-frame Approx. 6.1×
APS-C Approx. 5.2×
Full-frame Approx. 8×
APS-C Approx. 8×
GB
125