[Placidus (Mike and Trish)]

Ray, one thing I'm not understanding is the definition of the gain of 200. Do you know what are the units of the gain? The "gain" of a chip is often reported (irritatingly) in photo-electrons per ADU. For example, on the 16803 chip in our CG16M the "gain" is something like 1.8 photo-electrons per A/D count. A higher "gain" means you need more photo-electrons to register a count, so you get a darker image. I'm guessing from context you're describing something quite different.

We're so impressed by what you and others are doing with the ZWO camera we had a look at their web site. To our delight they actually offer a developer's SDK, so we might be able to integrate a future version into our system.