quickTimeMetadataKeyCameraLensIrisFNumber
A value of type kCMMetadataBaseDataType_UTF8 indicating measure of the amount of light transmitted through the lens. It is the focal length divided by the effective lens aperture diameter (e.g. “F2.8” or “2.8”).
Declaration
static let quickTimeMetadataKeyCameraLensIrisFNumber: AVMetadataKeyDiscussion
This is track-level metadata for video track that is associated with the camera.
See Also
QuickTime metadata keys
quickTimeMetadataKeyAccessibilityDescriptionquickTimeMetadataKeyAlbumquickTimeMetadataKeyArrangerquickTimeMetadataKeyArtistquickTimeMetadataKeyArtworkquickTimeMetadataKeyAuthorquickTimeMetadataKeyCameraFocalLength35mmEquivalentquickTimeMetadataKeyCameraFrameReadoutTimequickTimeMetadataKeyCameraISOSensitivityquickTimeMetadataKeyCameraIdentifierquickTimeMetadataKeyCameraLensModelquickTimeMetadataKeyCameraShutterSpeedAnglequickTimeMetadataKeyCameraShutterSpeedTimequickTimeMetadataKeyCameraWhiteBalancequickTimeMetadataKeyCinematicVideoIntent