The EXIF Flash tag is typically a bit-field, not a simple single-value list. In practice, the lowest bit tells you the main state: odd numbers usually mean the flash fired, while even numbers (including 0) mean it did not.

Other bits can add extra meaning, such as:

• whether flash firing was requested or compulsory
• whether return light from the flash was detected
• other camera-specific flash status details

So the value should be parsed by reading individual bits/flags rather than treating every number as a completely separate mode name.

Support varies by camera: not every model uses every flag, because available values depend on the camera’s flash features and EXIF implementation.

For documentation, look up the EXIF specification for the Flash tag definition used by your camera or metadata tool.