The Field of View of an astronomical telescope is the angular area or solid angle indicating the amount of the sky the telescope can image at once. The field of view depends both upon the telescope and the instrument in use.
The term may occasionally be used to refer to the range of Surveys, as both Field of View and Range indicate a portion of the sky covered.
Atacama Large Millimeter Array (ALMA)
Allen Telescope Array (ATA)
CCAT Prime (CCAT-p)
Large Synoptic Survey Telescope (LSST)
Palomar 48 Inch Telescope (P48)
Pi Of The Sky
Tomographic Ionized-Carbon Mapping Experiment (TIME)
UK Schmidt Telescope (UKST)
VLT Survey Telescope (VST)
Westerbork Synthesis Radio Telescope (WSRT)