Sony Alpha 7R IV Operating Instructions Manual page 509

When [ Aspect Ratio] is set to 4:3
L︓23M 5552×4160 pixels
M︓13M 4224×3168 pixels
S︓5.8M 2768×2080 pixels
When [ Aspect Ratio] is set to 16:9
L︓22M 6240×3512 pixels
M︓13M 4752×2672 pixels
S︓5.5M 3120×1752 pixels
When [ Aspect Ratio] is set to 1:1
L︓17M 4160×4160 pixels
M︓10M 3168×3168 pixels
S︓4.3M 2080×2080 pixels
Note
When [ File Format] is set to [RAW] or [RAW & JPEG], the image size for RAW images corresponds to "L."
Related Topic
Aspect Ratio (still image)
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