[raymo]

Hi Doug, If you take a 15sec sub at 6400 ISO you will get about twice
as much of the nebula. In my 8" f/5 with those settings the nebula
occupies almost exactly one third of the field of view. Of course I don't know the f number of your scope. This is at prime focus,of course.
I also don't know if you can track; if not then at 15secs the stars will trail considerably. For Jupiter, if you can't track, if your camera has video,
try a short clip, and Registax will handle the misalignment due to the planet's movement. You may need to use a 2 or 3x barlow on Jupiter to make it a reasonable size.
To make focusing quick and easy if you don't have Live View, I
recommend that you get a Bahtinov mask [about $40], makes focusing
a breeze.
raymo