This set of three tables gives exposure time requirements to reach fixed signal-to-noise per pixel for the slitless prism, again as a function of source AB magnitude. Here the columns correspond to specific wavelengths distributed over the spectrum. Note that the prism dispersion is a strong function of wavelength and the widths of the pixels vary, being relatively narrow at the blue end and considerably wider at redder wavelengths. The three tables are for half-light radii of 0, 0.2, and 0.3 arcseconds, and the signal-to-noise calculations assume an optimal weighted extraction of the spectrum.