I did a little video planet imaging with my Z12 dob. It was a challenge with the small sensor on the ZWOASI120MC. It was tough to find the planet with a 3x barlow at 4500 FL and had no luck with trying to get video before it drifts out. never tried it with a DSLR with a larger sensor. I believe you want your video to be under two minuets or less or the planets rotation will affect the image. I built a EQ platform and was able to get this without pulling my hair out lol.....
Nice image. I too have the z12 and again, although its possible, couldn't imagine trying to do what you did. Trying to center a 4500mm fl onto a small sensor camera using a manual dob mount is an act of heroism.
I guess my point is there are things that are possible and by all means give it a go, but realize its a pretty uphill struggle. I've seen people get frustrated and walk away thinking they just don't have the "knack" for it when it was a pretty tough tool for the job.
I was trying to do deep sky imaging for 2 years with a Starfinder mount, a good mount for visual, but not so well adept at AP. It did teach me some good lessons, but it was simply maddening. If I wasn't so stubborn I would have given up. In time I ended up putting the scope on a Losmandy mount and got a small Apo on a CG4 mount and my thought was "this is SO easy!". I'm big on working with what you have, but AP is a challenging enough even with the right tools..
On another note, something to note with regards to making an EQ platform for a large dob is how close you are to the poles.I thought about it, but my 12" scope would be sitting on a 49 degree platform since I live just south of the Canadian border.. That's not a stable angle. It becomes less "steep" as you move closer to the equator.
Edited by Maxtrixbass, 19 September 2019 - 11:22 AM.