I pasted this straight from
www.myastroshop.com.au.
Go there for more info on this camera.
GSTAR-EX is a highly light sensitive video camera imaging system that offers the benefits of both high-speed image capture and a special video frame accumulation mode. In SENSE UP mode normal exposures are internally co-added in the cameras onboard memory refreshing the image on your PC or T.V monitor every 2.56 seconds at maximum integration. The slower the integration time set, the quicker the screen refreshes.
So 128x senseup is maximum intergration, I only used 32x so I don't get star trails.
When I'm out tonight, I'll do this image again, using 128x senseup. Then you'll notice how much more detail is captured. An incredible camera.