I always thought it was not relaible but had to give it a go.
Scope DOB F5 - 1500mm, 3x Barlow and 5x zoom on Live view altogether theorically 22.5m
There is no quality or exposure degredation using 5x zoom does not alter the lieview/sensor performance only 10x does but can't image with 10x anyway.
I had exposure levels to maximum couldn't push any more out of it. CMOS noise is quite high though which is why the structure of the image is not reliable.
I tried my webcam recently, not a chance. I am going to pull out my low light camera and give it a go. Plenty of time for Neptune though but may need filters for colour but in the meantime with the low light camera will start with mono.
I will still be running a series of new tests with APT software update recently, as I purchased mine and there is a couple of new features that might help.