Snapshots of GJ 164 AB for the 2004-12-23 epoch in the three NICMOS narrow band filters: F108N, F164N, and F190N. The nonlinear scaling of the image makes the window applied to the data more apparent. Given that a single discrete model with a fixed pitch is used to process this data set, the window, used to cover a finite number of resolution elements, must be scaled linearly with the wavelength. Here, the effect of the window is mostly to reduce the contribution of poorly illuminated pixels to the overall noise of the kernel phase.