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2.8 Presentation of Results
The results shall be presented in the form of tables show
ing the value of modulation transfer function (and phase trans
fer function if measured) at each spatial frequency, for each
field angle and focal position tested. If preferred, results
may also be shown as graphs of transfer function versus spatial
frequency for each focal position and field angle. For some
purposes it is best to use double logarithmic paper, but this
is not universally so, and the presentation of tabular data
will allow the user to select his own preferred method of
plotting.