Which Aspect Ratio Should I Use?

Camera sensors

Most common digital cameras (from a Canon DSLR to a Sony mirrorless):

• 3:2: (Full-frame and APS-C) This ratio is the legacy standard inherited from 35mm film photography.
• 4:3: (Micro Four Thirds and most smartphones) This ratio is common in smaller digital formats.
• 16:9: Some Digital Cinema Cameras may have native 16:9 sensors (or cinematic ratios like 17:9, 1.85:1, and 2.39:1) e.g. Blackmagic Pocket Cinema Camera

DJI Osmo Action

DJI Osmo Action has a native 4:3 aspect ratio. When you choose the 16:9 aspect ratio on the DJI Osmo Action 5, it is a cropped version of the camera's native 4:3 image. The 4:3 mode uses the entire sensor, which is a key feature of the camera

The 4:3 option is excellent for social media or projects that require different aspect ratios for different platforms, as it gives you more image information to work with.

Canon

Videos

The recorded video files will always be in the 16:9 aspect ratio for standard UHD 4K and Full HD video modes.

If you want a more cinematic look (like 2.39:1) or a social media look (1:1), you must achieve this by cropping in DaVinci Resolve or other editing software after you shoot.

Images

If you are shooting in RAW format, the final RAW file will always contain the full, uncropped 3:2 sensor data.