<p>Estimated MTF is plotted as a function of spatial frequency for the red, green, and blue image planes (shown in corresponding colors). Solid lines show empirical fits to , where for all , is set to 1 and where any fit values greater than 1 were also set to 1. The fit parameters are for red channel, for green channel, and for blue channel. MTF values at cycles/pixel (empty plot symbols) systematically deviated from the rest and were excluded from the fit.</p
