get_fnumber
Description:
Warning: get_fnumber is deprecated since 0.14.0.
See <ulink url="https://en.
Note:
Use try_get_fnumber instead.
wikipedia.org/wiki/F-number"></ulink> for more information. If Exif.Photo.FNumber does not exist, it will fall back to calculating the FNumber from Exif.Photo.ApertureValue (if available);
Parameters:
this |
An instance of Metadata |
Returns:
The exposure Fnumber as a gdouble, or -1.0 if tag is not present or invalid. |