Histograms of the number of mock stars in 0.25 mag wide bins of I₀ and V₀. In top panel, the solid red lined histogram includes all 4000 mock I₀ band stars randomly placed in VIMOS Quadrant 1 (see lower panel for the corresponding V band histogram). The mock stars are given random I₀ magnitudes in the range 22 <I₀ < 28. In the top panel, the green dot dashed histogram displays the 1571 mock stars found and measured by DAOPHOT, matched with those found in the V band image, and having −0.1 < sharpness < 0.03 as measured from the I band image (see lower panel for the corresponding histogram of the 1571 objects measured in the V band image). (See the electronic edition of the journal for a color version of this figure.)