  We investigate the imaging performance of an interferometric array in the
case of wide field, high resolution, narrow band, snapshot imaging. We find
that, when uv-cell sizes are sufficiently small (ie. image sizes are
sufficiently large), each instantaneous visibility record is gridded into its
own uv-cell. This holds even for dense arrays, like the core of the next
generation VLA. In this particular, application, Uniform weighting of the
gridded visibilities approaches Natural weighting, with its often deleterious
consequences on the resulting synthesized beam. For a core-dominated array, we
show that the resulting image noise is highly correlated on scales comparable
to the spatial frequencies of the core baselines. In general, this study
accentuates the fact that, for imaging applications that require high
resolution (Plains array and greater), many of the core antennas can be
employed as a separate subarray for low resolution science, without sacrificing
the quality of the high resolution science.
