There are no fixed settings for imaging. It all depends on the setup, object and weather. For planetary imaging you can set gain and exposure time. The higher gain the more visible noise you will see. If you lower it the exposure must be longer. So there is a balance between exposure and gain. Venus, Mars as very bright may have very low gain and still very short exposure. Jupiter is bit dimmer, so exposures are slightly longer, while Saturn often uses like 30 ms exposures and very high gain (where 30-40ms is usually a "max" exposure time for normal planetary imaging).
