I don’t get it. What is so important to have this offset setting? Does anyone really understand what’s offset mean in digital gain in camera control, or just want it because of the trendy thing came from the popular, seasoned amateur astronomers? Most of times, digital camera designers already calculated the offset voltages from the driving circuits that causes noise in the digitizer’s output. This is calculated and compensated for during the designing and software development. So. Unless you’re really using your Astro cameras to inspect semiconductor wafer plates. What’s the big deal? Even and older wafer inspection cameras, which has 80 times larger number of megapixels than our cams has this offset calculated and calibrated into the preset digital gain settings to prevent outrageous unwanted noise best based on the particular image sensor being used.