There's a (relatively) huge market for these kind of things I think. Autoguiding with the normal configuration of camera and laptop can be such a pain. I just hope the extra competition improves the offerings rather than reducing the offerings!
Mag 8 doesn't sound bright enough for me, considering if that's the limiting mag it's reasonable to assume it only works "well" with brighter stars.
I think I would buy one of these or a TV Guider if I could see one working in the flesh and they were more commonly available.
Roger.
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