There is not defined set of possible values here. This identifies features found in the photograph such as smoke or city names. This will allow you to search for substrings and this operator does a case insensitive search. Signed floating point number. This is the latitude of the centerpoint of the photograph.
Negative values indicate South of the equator.
Signed floating point number. This is the longitude of the centerpoint of the photograph. Negative values indicate West of the prime meridian. Indicates the film exposure quality. Indicates how the camera was tilted with respect to the Earth.