Hi Carl,
I can't really comment on your result as I have a different setup but it is very close to my first effort with Saturn using a webcam. It really depends a lot on the "seeing" at the time as well. I am not sure if the barlow is pushing your limits on the scope. I know most of the time when I try a barlow the image is bigger (usually not much) but the trade off is a much more degraded image. I use a Bahtinov mask for stars etc but I don't know if they help with video /cam work on planets? Somebody could correct me!
Cheers
Dave
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