Residual Charge in RETROCAM

Shown are five individual, dithered images in the g filter, and the combined image is below. Click on each to get an enlargement. North is down, and east is to the right. There are ghost images of bright stars, which shift as a function of dither position.

Here is the combination of five images in the r filter. It's not as bad, because the r filter was used before the g filter: