Thank you to GEB reader Sebastien for letting us know that the Field of View can be adjusted in Google Earth by means of a tour. There are other techniques mentioned here such as a KML with transparent photo overlay, or changing an ini file, but the tour technique seems to be the easiest.
It is hard to describe the effects of changing the field of view, so instead we will just show you.
Google Earth with different fields of view.
In the above screen shots, the eye altitude varies from about 64,000 km with a field of view of 10°, to just 37 km with a field of view of 300°. Also, with the larger fields of view it is possible to zoom out a very long way from the earth, which has interesting effects on the background stars and galaxy. Using the 300° field of view and zooming in on an area with mountains or 3D buildings also has interesting effects.
3D buildings seen with a 300° field of view.
If you ever want to change the field of view yourself simply create a short tour in Google Earth, edit the KML and add <gx:horizFov>120</gx:horizFov> inside the <LookAt> tag, changing ‘120’ to your desired field of view.
Alternatively, just download one of the tours we have prepared for you, and if it doesn’t have your desired field of view, edit it in a text editor and adjust the number in the line with ‘gx:horizFov’. Here are the tours: 10°,30°,45°,60°,90°,120°,160°,200°,300°.
The field of view remains in effect until you either open a tour with another field of view, or restart Google Earth.