That's exactly the point that I'd like to see demonstrated in a few videos. Is there a "short integration" setting that works, and what does it show?
a video showing the live output on the screen when using this camera with a stationary telescope (i.e. on an alt-az mount)?
Unfortunately,it doesn't quite work this way; when you're integrating (ie, increasing the exposure into the 'seconds' range), the DSO target will drift across the field of view and will result in a 'smeared' output. If you mount a C-Lens that's equivalent to wide angle/standard (~24mm to ~80mm), you could get away with couple of seconds exposure on a tripod (stationary). With a Dob and long-integration video astronomy, you need tracking.
Exactly how much star trailing and field rotation you get in an image depends on what part of the sky you're viewing.
Image brightness and scale depends on scope size and F ratio .
Integration time depends on all these variables , so it's hard to give a range of settings for a target.
All these being said, the Advanced MK II camera is capable of using shorter integration times for the same scope and target than other cameras .
That is because it's using the most sensitive CCD that's available today from Sony , icx672 ExviewHAD II .
It's sensitivity is rated by Sony at 2450mV .
For comparison, the venerable icx418 is rated by Sony at only 1300mV .
The camera also has lower noise and no amp glow, which allows higher gain to be employed , for shorter integration times.
A practical factor is between half and a quarter of other camera types integration time for the same scope and target.
Here's an explanation of star trail length calculation:
Star Trail Calculation
You may also use one of the online star trail calculators such as
Star Trail ONLINE Calculator
You'll need the target declination and scope plus camera parameters so beware of GIGO .
For comparison, all camera images that are posted on the Astro-Video Systems website are taken at integration times between 2 sec and 17 sec.