Hi Keith.
The ToUcam is definitely the way to go, assuming you have a laptop to run next to the scope.
Depending on the focal length of your scope, the image may or may not be larger than what you can achieve with afocal, especially given that with afocal you can use the optical zoom of the camera, and also the high resolution to crop the images.
But the ToUcam will ultimately produce better images given its ability to capture many frames in a short period of time, capturing the best images during moments of good seeing.
What's the focal length of that scope? It looks like a short tube newt?
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