You can't http://support.sonymobile.com/global-en/xperiam4aqua/userguide/Still-camera-settings/ 13MP 4128×3096(4:3) 13 megapixel resolution with 4:3 aspect ratio. Suitable for photos that you want to view on non-widescreen displays or print in high resolution. 9MP 3920×2204(16:9) 9 megapixel resolution with 16:9 aspect ratio. Suitable for photos that you want to view on widescreen displays. 8MP 3264×2448(4:3) 8 megapixel resolution with 4:3 aspect ratio. Suitable for photos that you want to view on non-widescreen displays or print in high resolution. 8MP 3840×2160(16:9) 8 megapixel resolution with 16:9 aspect ratio. Suitable for photos that you want to view on widescreen displays. 3MP 2048×1536(4:3) 3 megapixel resolution with 4:3 aspect ratio. Suitable for photos that you want to view on non-widescreen displays or print in high resolution. 2MP 1920×1080(16:9) 2 megapixel resolution with 16:9 aspect ratio. Suitable for photos that you want to view on widescreen displays. VGA 640×480(4:3) VGA format with 4:3 aspect ratio. This setting is only available in Manual capturing mode.
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