Method

GExiv2Metadataget_fnumber

unstable since: 0.16.0

Declaration [src]

gdouble
gexiv2_metadata_get_fnumber (
  GExiv2Metadata* self
  GError** error
)

Description [src]

See https://en.wikipedia.org/wiki/F-number for more information. If Exif.Photo.FNumber does not exist, it will fall back to calculating the FNumber from Exif.Photo.ApertureValue (if available).

Available since: 0.16.0

Return value

Type: gdouble

The exposure Fnumber as a gdouble, or -1.0 if tag is not present or invalid.